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ND280 – guided tour –. Informacje ogólne wiązka Magnes Detektory p 0 Traker FGD TPC SMRD W spillu Poza spillem SMRD a sprawa polska. Detektory fotonów Informacja z detektorów fotonów Kalendarz prac. Podstawowe wiadomości: Po co. - PowerPoint PPT Presentation
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Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
1
1 Informacje ogoacutelne
2 wiązka
3 Magnes
4 Detektory
a) 0
b) Traker
i FGD
ii TPC
c) SMRD
i W spillu
ii Poza spillem
iii SMRD a sprawa polska
5 Detektory fotonoacutew
6 Informacja z detektoroacutew fotonoacutew
7 Kalendarz prac
ND280 ndash guided tour ndash
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
2
The neutrino spectrum at the far detector is estimated by correcting the neutrino spectrum measured at the near detector by an extrapolation function obtained from the beam Monte Carlo simulation(farnear ratio)
The goal of the ND280 detector is to measure the neutrino ( and e) spectra and to study the neutrino cross sections to predict the response at the far detector
Podstawowe wiadomości
Po co
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
3
Podstawowe wiadomości
Po co
SuperK e background lt 10νμ event normalisation lt 5Energy scale lt2non-QECCQE at 5-10Beam linear distortion lt 20Width lt 10
e appearance measurement in SK
The energy scale in the near detector is set by the Magnet-TPC spectrometer system (B mapping better than 1)
The event normalization and the spectrum shape (linear distortion and width of the spectrum) measurement will be done by measuring the CCQE events
Po co czyli Near detector tasks
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
4
Podstawowe wiadomości
Jak
Wiązka 30 () GeV protony na tarczy CMoc wiązkiStruktura czasowaKat 250 ndash wiązka neutrin z wiązka pierwotnych protonoacutew - off axisMagnes
bullRozmontowany do transportu z CERNu
bullMontowany w Japonii i elementy spuszczane do studni -23mDetektor montowany w
bullStudni
bullex magnesie UA1
Jak czyli informacje Techniczne
Trudno jest podać końcowe liczby bo w rożnych okresach będą roacuteżne
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
5
Podstawowe wiadomości
Gdzie
W studni będzie ciasno
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
6
Jarzmo 82 moduły C 55 t modułThe total weight of the yoke is 850 tons The external dimensions of the magnet are 76m(L)x61m(H)x56m(W)Dipol 02 T
Geometria
Jarzmo otwarte Struktura jarzma C
Magnes zamknięty
C is segmented in 12 azimuthal sections Each section is made of 16 iron plates 5 cm thick with 17 cmair gap between plates
MAGNES
61m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
7
Jarzmo magnesu pole prostopadłe do beamu i grawitacji 02T
Z goacutery złożony
Pole B
beam
MAGNES
76m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
8
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
9
MAGNES Dla lepszego wyobrażenia
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
10
No fragile each 55 tons (normal truck lt30 tons)
bulltotal 848 tons
bulloverall dimensions each 3x1x65 m3
No special box or protection are foreseen
The only protection will be a cover against rain
Detail to be defined with the Shipping Company
based on their preferred shipping configuration and proposed container
Shipping configurations proposed by Company have to be verified
Orientation during transport and storing
Orientation during lowering in the pit
I jego transport do Japonii MAGNES
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
11
Montaż modułoacutew jarzma bullTest insertion of dummy modules and adjustment possibilities under discussionbull conceptual installation scheme for electronics existsbull engineering design on hold until decision
on reinforcement barSMRD cooling system
Alignement - względne ustawienie modułoacutew jarzma bullWiemy że alignement z dokładnością +-1mm powinno być wystarczajace dla montazu licznikoacutew SMRD ale jak wyjdzieRequire good alignment (see Andrersquos presentation)
Chłodzenie bdquoSMRD cooling system only required if coils are not chilledrdquo
Magda PosiadałaTadeusz KozłowskiMHS
MAGNES Ustawienie w studni i alignement chłodzenie
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
12
Nie pokazuje struktury mechanicznej (bdquobasketrdquo) na ktoacuterej wiszą
0 detector
Kalorymetr elektromagnetyczny
Traker
bullTPC Time Projection Chamber
bullFGD Fine Graine Detector
SMRD - Side Muon Range Detector
DETEKTORY
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
2
The neutrino spectrum at the far detector is estimated by correcting the neutrino spectrum measured at the near detector by an extrapolation function obtained from the beam Monte Carlo simulation(farnear ratio)
The goal of the ND280 detector is to measure the neutrino ( and e) spectra and to study the neutrino cross sections to predict the response at the far detector
Podstawowe wiadomości
Po co
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
3
Podstawowe wiadomości
Po co
SuperK e background lt 10νμ event normalisation lt 5Energy scale lt2non-QECCQE at 5-10Beam linear distortion lt 20Width lt 10
e appearance measurement in SK
The energy scale in the near detector is set by the Magnet-TPC spectrometer system (B mapping better than 1)
The event normalization and the spectrum shape (linear distortion and width of the spectrum) measurement will be done by measuring the CCQE events
Po co czyli Near detector tasks
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
4
Podstawowe wiadomości
Jak
Wiązka 30 () GeV protony na tarczy CMoc wiązkiStruktura czasowaKat 250 ndash wiązka neutrin z wiązka pierwotnych protonoacutew - off axisMagnes
bullRozmontowany do transportu z CERNu
bullMontowany w Japonii i elementy spuszczane do studni -23mDetektor montowany w
bullStudni
bullex magnesie UA1
Jak czyli informacje Techniczne
Trudno jest podać końcowe liczby bo w rożnych okresach będą roacuteżne
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
5
Podstawowe wiadomości
Gdzie
W studni będzie ciasno
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
6
Jarzmo 82 moduły C 55 t modułThe total weight of the yoke is 850 tons The external dimensions of the magnet are 76m(L)x61m(H)x56m(W)Dipol 02 T
Geometria
Jarzmo otwarte Struktura jarzma C
Magnes zamknięty
C is segmented in 12 azimuthal sections Each section is made of 16 iron plates 5 cm thick with 17 cmair gap between plates
MAGNES
61m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
7
Jarzmo magnesu pole prostopadłe do beamu i grawitacji 02T
Z goacutery złożony
Pole B
beam
MAGNES
76m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
8
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
9
MAGNES Dla lepszego wyobrażenia
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
10
No fragile each 55 tons (normal truck lt30 tons)
bulltotal 848 tons
bulloverall dimensions each 3x1x65 m3
No special box or protection are foreseen
The only protection will be a cover against rain
Detail to be defined with the Shipping Company
based on their preferred shipping configuration and proposed container
Shipping configurations proposed by Company have to be verified
Orientation during transport and storing
Orientation during lowering in the pit
I jego transport do Japonii MAGNES
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
11
Montaż modułoacutew jarzma bullTest insertion of dummy modules and adjustment possibilities under discussionbull conceptual installation scheme for electronics existsbull engineering design on hold until decision
on reinforcement barSMRD cooling system
Alignement - względne ustawienie modułoacutew jarzma bullWiemy że alignement z dokładnością +-1mm powinno być wystarczajace dla montazu licznikoacutew SMRD ale jak wyjdzieRequire good alignment (see Andrersquos presentation)
Chłodzenie bdquoSMRD cooling system only required if coils are not chilledrdquo
Magda PosiadałaTadeusz KozłowskiMHS
MAGNES Ustawienie w studni i alignement chłodzenie
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
12
Nie pokazuje struktury mechanicznej (bdquobasketrdquo) na ktoacuterej wiszą
0 detector
Kalorymetr elektromagnetyczny
Traker
bullTPC Time Projection Chamber
bullFGD Fine Graine Detector
SMRD - Side Muon Range Detector
DETEKTORY
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
3
Podstawowe wiadomości
Po co
SuperK e background lt 10νμ event normalisation lt 5Energy scale lt2non-QECCQE at 5-10Beam linear distortion lt 20Width lt 10
e appearance measurement in SK
The energy scale in the near detector is set by the Magnet-TPC spectrometer system (B mapping better than 1)
The event normalization and the spectrum shape (linear distortion and width of the spectrum) measurement will be done by measuring the CCQE events
Po co czyli Near detector tasks
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
4
Podstawowe wiadomości
Jak
Wiązka 30 () GeV protony na tarczy CMoc wiązkiStruktura czasowaKat 250 ndash wiązka neutrin z wiązka pierwotnych protonoacutew - off axisMagnes
bullRozmontowany do transportu z CERNu
bullMontowany w Japonii i elementy spuszczane do studni -23mDetektor montowany w
bullStudni
bullex magnesie UA1
Jak czyli informacje Techniczne
Trudno jest podać końcowe liczby bo w rożnych okresach będą roacuteżne
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
5
Podstawowe wiadomości
Gdzie
W studni będzie ciasno
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
6
Jarzmo 82 moduły C 55 t modułThe total weight of the yoke is 850 tons The external dimensions of the magnet are 76m(L)x61m(H)x56m(W)Dipol 02 T
Geometria
Jarzmo otwarte Struktura jarzma C
Magnes zamknięty
C is segmented in 12 azimuthal sections Each section is made of 16 iron plates 5 cm thick with 17 cmair gap between plates
MAGNES
61m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
7
Jarzmo magnesu pole prostopadłe do beamu i grawitacji 02T
Z goacutery złożony
Pole B
beam
MAGNES
76m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
8
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
9
MAGNES Dla lepszego wyobrażenia
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
10
No fragile each 55 tons (normal truck lt30 tons)
bulltotal 848 tons
bulloverall dimensions each 3x1x65 m3
No special box or protection are foreseen
The only protection will be a cover against rain
Detail to be defined with the Shipping Company
based on their preferred shipping configuration and proposed container
Shipping configurations proposed by Company have to be verified
Orientation during transport and storing
Orientation during lowering in the pit
I jego transport do Japonii MAGNES
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
11
Montaż modułoacutew jarzma bullTest insertion of dummy modules and adjustment possibilities under discussionbull conceptual installation scheme for electronics existsbull engineering design on hold until decision
on reinforcement barSMRD cooling system
Alignement - względne ustawienie modułoacutew jarzma bullWiemy że alignement z dokładnością +-1mm powinno być wystarczajace dla montazu licznikoacutew SMRD ale jak wyjdzieRequire good alignment (see Andrersquos presentation)
Chłodzenie bdquoSMRD cooling system only required if coils are not chilledrdquo
Magda PosiadałaTadeusz KozłowskiMHS
MAGNES Ustawienie w studni i alignement chłodzenie
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
12
Nie pokazuje struktury mechanicznej (bdquobasketrdquo) na ktoacuterej wiszą
0 detector
Kalorymetr elektromagnetyczny
Traker
bullTPC Time Projection Chamber
bullFGD Fine Graine Detector
SMRD - Side Muon Range Detector
DETEKTORY
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
4
Podstawowe wiadomości
Jak
Wiązka 30 () GeV protony na tarczy CMoc wiązkiStruktura czasowaKat 250 ndash wiązka neutrin z wiązka pierwotnych protonoacutew - off axisMagnes
bullRozmontowany do transportu z CERNu
bullMontowany w Japonii i elementy spuszczane do studni -23mDetektor montowany w
bullStudni
bullex magnesie UA1
Jak czyli informacje Techniczne
Trudno jest podać końcowe liczby bo w rożnych okresach będą roacuteżne
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
5
Podstawowe wiadomości
Gdzie
W studni będzie ciasno
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
6
Jarzmo 82 moduły C 55 t modułThe total weight of the yoke is 850 tons The external dimensions of the magnet are 76m(L)x61m(H)x56m(W)Dipol 02 T
Geometria
Jarzmo otwarte Struktura jarzma C
Magnes zamknięty
C is segmented in 12 azimuthal sections Each section is made of 16 iron plates 5 cm thick with 17 cmair gap between plates
MAGNES
61m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
7
Jarzmo magnesu pole prostopadłe do beamu i grawitacji 02T
Z goacutery złożony
Pole B
beam
MAGNES
76m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
8
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
9
MAGNES Dla lepszego wyobrażenia
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
10
No fragile each 55 tons (normal truck lt30 tons)
bulltotal 848 tons
bulloverall dimensions each 3x1x65 m3
No special box or protection are foreseen
The only protection will be a cover against rain
Detail to be defined with the Shipping Company
based on their preferred shipping configuration and proposed container
Shipping configurations proposed by Company have to be verified
Orientation during transport and storing
Orientation during lowering in the pit
I jego transport do Japonii MAGNES
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
11
Montaż modułoacutew jarzma bullTest insertion of dummy modules and adjustment possibilities under discussionbull conceptual installation scheme for electronics existsbull engineering design on hold until decision
on reinforcement barSMRD cooling system
Alignement - względne ustawienie modułoacutew jarzma bullWiemy że alignement z dokładnością +-1mm powinno być wystarczajace dla montazu licznikoacutew SMRD ale jak wyjdzieRequire good alignment (see Andrersquos presentation)
Chłodzenie bdquoSMRD cooling system only required if coils are not chilledrdquo
Magda PosiadałaTadeusz KozłowskiMHS
MAGNES Ustawienie w studni i alignement chłodzenie
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
12
Nie pokazuje struktury mechanicznej (bdquobasketrdquo) na ktoacuterej wiszą
0 detector
Kalorymetr elektromagnetyczny
Traker
bullTPC Time Projection Chamber
bullFGD Fine Graine Detector
SMRD - Side Muon Range Detector
DETEKTORY
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
5
Podstawowe wiadomości
Gdzie
W studni będzie ciasno
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
6
Jarzmo 82 moduły C 55 t modułThe total weight of the yoke is 850 tons The external dimensions of the magnet are 76m(L)x61m(H)x56m(W)Dipol 02 T
Geometria
Jarzmo otwarte Struktura jarzma C
Magnes zamknięty
C is segmented in 12 azimuthal sections Each section is made of 16 iron plates 5 cm thick with 17 cmair gap between plates
MAGNES
61m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
7
Jarzmo magnesu pole prostopadłe do beamu i grawitacji 02T
Z goacutery złożony
Pole B
beam
MAGNES
76m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
8
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
9
MAGNES Dla lepszego wyobrażenia
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
10
No fragile each 55 tons (normal truck lt30 tons)
bulltotal 848 tons
bulloverall dimensions each 3x1x65 m3
No special box or protection are foreseen
The only protection will be a cover against rain
Detail to be defined with the Shipping Company
based on their preferred shipping configuration and proposed container
Shipping configurations proposed by Company have to be verified
Orientation during transport and storing
Orientation during lowering in the pit
I jego transport do Japonii MAGNES
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
11
Montaż modułoacutew jarzma bullTest insertion of dummy modules and adjustment possibilities under discussionbull conceptual installation scheme for electronics existsbull engineering design on hold until decision
on reinforcement barSMRD cooling system
Alignement - względne ustawienie modułoacutew jarzma bullWiemy że alignement z dokładnością +-1mm powinno być wystarczajace dla montazu licznikoacutew SMRD ale jak wyjdzieRequire good alignment (see Andrersquos presentation)
Chłodzenie bdquoSMRD cooling system only required if coils are not chilledrdquo
Magda PosiadałaTadeusz KozłowskiMHS
MAGNES Ustawienie w studni i alignement chłodzenie
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
12
Nie pokazuje struktury mechanicznej (bdquobasketrdquo) na ktoacuterej wiszą
0 detector
Kalorymetr elektromagnetyczny
Traker
bullTPC Time Projection Chamber
bullFGD Fine Graine Detector
SMRD - Side Muon Range Detector
DETEKTORY
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
6
Jarzmo 82 moduły C 55 t modułThe total weight of the yoke is 850 tons The external dimensions of the magnet are 76m(L)x61m(H)x56m(W)Dipol 02 T
Geometria
Jarzmo otwarte Struktura jarzma C
Magnes zamknięty
C is segmented in 12 azimuthal sections Each section is made of 16 iron plates 5 cm thick with 17 cmair gap between plates
MAGNES
61m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
7
Jarzmo magnesu pole prostopadłe do beamu i grawitacji 02T
Z goacutery złożony
Pole B
beam
MAGNES
76m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
8
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
9
MAGNES Dla lepszego wyobrażenia
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
10
No fragile each 55 tons (normal truck lt30 tons)
bulltotal 848 tons
bulloverall dimensions each 3x1x65 m3
No special box or protection are foreseen
The only protection will be a cover against rain
Detail to be defined with the Shipping Company
based on their preferred shipping configuration and proposed container
Shipping configurations proposed by Company have to be verified
Orientation during transport and storing
Orientation during lowering in the pit
I jego transport do Japonii MAGNES
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
11
Montaż modułoacutew jarzma bullTest insertion of dummy modules and adjustment possibilities under discussionbull conceptual installation scheme for electronics existsbull engineering design on hold until decision
on reinforcement barSMRD cooling system
Alignement - względne ustawienie modułoacutew jarzma bullWiemy że alignement z dokładnością +-1mm powinno być wystarczajace dla montazu licznikoacutew SMRD ale jak wyjdzieRequire good alignment (see Andrersquos presentation)
Chłodzenie bdquoSMRD cooling system only required if coils are not chilledrdquo
Magda PosiadałaTadeusz KozłowskiMHS
MAGNES Ustawienie w studni i alignement chłodzenie
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
12
Nie pokazuje struktury mechanicznej (bdquobasketrdquo) na ktoacuterej wiszą
0 detector
Kalorymetr elektromagnetyczny
Traker
bullTPC Time Projection Chamber
bullFGD Fine Graine Detector
SMRD - Side Muon Range Detector
DETEKTORY
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
7
Jarzmo magnesu pole prostopadłe do beamu i grawitacji 02T
Z goacutery złożony
Pole B
beam
MAGNES
76m
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
8
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
9
MAGNES Dla lepszego wyobrażenia
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
10
No fragile each 55 tons (normal truck lt30 tons)
bulltotal 848 tons
bulloverall dimensions each 3x1x65 m3
No special box or protection are foreseen
The only protection will be a cover against rain
Detail to be defined with the Shipping Company
based on their preferred shipping configuration and proposed container
Shipping configurations proposed by Company have to be verified
Orientation during transport and storing
Orientation during lowering in the pit
I jego transport do Japonii MAGNES
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
11
Montaż modułoacutew jarzma bullTest insertion of dummy modules and adjustment possibilities under discussionbull conceptual installation scheme for electronics existsbull engineering design on hold until decision
on reinforcement barSMRD cooling system
Alignement - względne ustawienie modułoacutew jarzma bullWiemy że alignement z dokładnością +-1mm powinno być wystarczajace dla montazu licznikoacutew SMRD ale jak wyjdzieRequire good alignment (see Andrersquos presentation)
Chłodzenie bdquoSMRD cooling system only required if coils are not chilledrdquo
Magda PosiadałaTadeusz KozłowskiMHS
MAGNES Ustawienie w studni i alignement chłodzenie
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
12
Nie pokazuje struktury mechanicznej (bdquobasketrdquo) na ktoacuterej wiszą
0 detector
Kalorymetr elektromagnetyczny
Traker
bullTPC Time Projection Chamber
bullFGD Fine Graine Detector
SMRD - Side Muon Range Detector
DETEKTORY
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
8
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
9
MAGNES Dla lepszego wyobrażenia
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
10
No fragile each 55 tons (normal truck lt30 tons)
bulltotal 848 tons
bulloverall dimensions each 3x1x65 m3
No special box or protection are foreseen
The only protection will be a cover against rain
Detail to be defined with the Shipping Company
based on their preferred shipping configuration and proposed container
Shipping configurations proposed by Company have to be verified
Orientation during transport and storing
Orientation during lowering in the pit
I jego transport do Japonii MAGNES
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
11
Montaż modułoacutew jarzma bullTest insertion of dummy modules and adjustment possibilities under discussionbull conceptual installation scheme for electronics existsbull engineering design on hold until decision
on reinforcement barSMRD cooling system
Alignement - względne ustawienie modułoacutew jarzma bullWiemy że alignement z dokładnością +-1mm powinno być wystarczajace dla montazu licznikoacutew SMRD ale jak wyjdzieRequire good alignment (see Andrersquos presentation)
Chłodzenie bdquoSMRD cooling system only required if coils are not chilledrdquo
Magda PosiadałaTadeusz KozłowskiMHS
MAGNES Ustawienie w studni i alignement chłodzenie
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
12
Nie pokazuje struktury mechanicznej (bdquobasketrdquo) na ktoacuterej wiszą
0 detector
Kalorymetr elektromagnetyczny
Traker
bullTPC Time Projection Chamber
bullFGD Fine Graine Detector
SMRD - Side Muon Range Detector
DETEKTORY
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
9
MAGNES Dla lepszego wyobrażenia
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
10
No fragile each 55 tons (normal truck lt30 tons)
bulltotal 848 tons
bulloverall dimensions each 3x1x65 m3
No special box or protection are foreseen
The only protection will be a cover against rain
Detail to be defined with the Shipping Company
based on their preferred shipping configuration and proposed container
Shipping configurations proposed by Company have to be verified
Orientation during transport and storing
Orientation during lowering in the pit
I jego transport do Japonii MAGNES
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
11
Montaż modułoacutew jarzma bullTest insertion of dummy modules and adjustment possibilities under discussionbull conceptual installation scheme for electronics existsbull engineering design on hold until decision
on reinforcement barSMRD cooling system
Alignement - względne ustawienie modułoacutew jarzma bullWiemy że alignement z dokładnością +-1mm powinno być wystarczajace dla montazu licznikoacutew SMRD ale jak wyjdzieRequire good alignment (see Andrersquos presentation)
Chłodzenie bdquoSMRD cooling system only required if coils are not chilledrdquo
Magda PosiadałaTadeusz KozłowskiMHS
MAGNES Ustawienie w studni i alignement chłodzenie
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
12
Nie pokazuje struktury mechanicznej (bdquobasketrdquo) na ktoacuterej wiszą
0 detector
Kalorymetr elektromagnetyczny
Traker
bullTPC Time Projection Chamber
bullFGD Fine Graine Detector
SMRD - Side Muon Range Detector
DETEKTORY
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
10
No fragile each 55 tons (normal truck lt30 tons)
bulltotal 848 tons
bulloverall dimensions each 3x1x65 m3
No special box or protection are foreseen
The only protection will be a cover against rain
Detail to be defined with the Shipping Company
based on their preferred shipping configuration and proposed container
Shipping configurations proposed by Company have to be verified
Orientation during transport and storing
Orientation during lowering in the pit
I jego transport do Japonii MAGNES
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
11
Montaż modułoacutew jarzma bullTest insertion of dummy modules and adjustment possibilities under discussionbull conceptual installation scheme for electronics existsbull engineering design on hold until decision
on reinforcement barSMRD cooling system
Alignement - względne ustawienie modułoacutew jarzma bullWiemy że alignement z dokładnością +-1mm powinno być wystarczajace dla montazu licznikoacutew SMRD ale jak wyjdzieRequire good alignment (see Andrersquos presentation)
Chłodzenie bdquoSMRD cooling system only required if coils are not chilledrdquo
Magda PosiadałaTadeusz KozłowskiMHS
MAGNES Ustawienie w studni i alignement chłodzenie
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
12
Nie pokazuje struktury mechanicznej (bdquobasketrdquo) na ktoacuterej wiszą
0 detector
Kalorymetr elektromagnetyczny
Traker
bullTPC Time Projection Chamber
bullFGD Fine Graine Detector
SMRD - Side Muon Range Detector
DETEKTORY
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
11
Montaż modułoacutew jarzma bullTest insertion of dummy modules and adjustment possibilities under discussionbull conceptual installation scheme for electronics existsbull engineering design on hold until decision
on reinforcement barSMRD cooling system
Alignement - względne ustawienie modułoacutew jarzma bullWiemy że alignement z dokładnością +-1mm powinno być wystarczajace dla montazu licznikoacutew SMRD ale jak wyjdzieRequire good alignment (see Andrersquos presentation)
Chłodzenie bdquoSMRD cooling system only required if coils are not chilledrdquo
Magda PosiadałaTadeusz KozłowskiMHS
MAGNES Ustawienie w studni i alignement chłodzenie
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
12
Nie pokazuje struktury mechanicznej (bdquobasketrdquo) na ktoacuterej wiszą
0 detector
Kalorymetr elektromagnetyczny
Traker
bullTPC Time Projection Chamber
bullFGD Fine Graine Detector
SMRD - Side Muon Range Detector
DETEKTORY
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
12
Nie pokazuje struktury mechanicznej (bdquobasketrdquo) na ktoacuterej wiszą
0 detector
Kalorymetr elektromagnetyczny
Traker
bullTPC Time Projection Chamber
bullFGD Fine Graine Detector
SMRD - Side Muon Range Detector
DETEKTORY
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
13
bdquoBASKETrdquo struktura mechaniczna (bdquobasketrdquo) na ktoacuterej wiszą detektory
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
14
ECALDS
DS ECAL comprises 1 module containing-
33 Pb layers
34 scint Layers
Total number of Scintillator bars = 3468 Dimensions- 23m x 23m x 05mEach module will have a carbon fibre face panel front and back with structurally stiff aluminium sides
Weight of modules ~ 53 tonnes
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
15
DS ECAL design completed and reviewed
bullMaterials ordered
bullLabs and devices (scanners moving etc) ~ready
bullProduction lab at Lancaster ready
bullLayers construction in January-March 2008
bullModule assembly and QA in April-June
bullMPPC installation in August
bullCosmics runs starting in September
bullCERN test-beam in Spring 2009
bullInstallation at Tokai in 08-09 2009
ECALDS
DS ECAL
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
16
The P0D is a solid scintillator strip detector using water to provide a large oxygen content
It is based on the K2K SciBar experience and the MINERvA design
The P0D target is constructed of water layers between X-Y scintillator modules which provide the charged particle tracking The scintillator modules are constructed with 10 lead by mass so it has a high probability of creating an electromagnetic shower The P0D has a total target mass of approximately 15 tons and a fiducial mass of approximately 5 tons
bdquoThe primary physics goal of the P0D is to measure neutral current p0 events produced in a water target within the expected momentum T2K ne appearance signalrdquo
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
17
Light generated by passing particles in the scintillator bars is collected by a 1mm diameter Y-11 Wavelength Shifting Fiber (WLS) threaded axially through the bars The light is collected by a photo sensor at one end of the barbullThe photo sensor is housed in an optical connector which screws to the frame as shownbullThe far end of the fiber is polished and mirrored and terminates at the far end of the scintillating bar
Mieli kłopotyhellip0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
18
3 Super-POslashDules
Upstream ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Target (11000 kg)28573 kg water26 POslashDules25 16mm brass radiators25 Water target layersSplit into 2 sub-units for pre-installation handling
Central ECAL (3200 kg)7 POslashDules7 4mm-thick lead radiators
Total Mass is 17600 kg - 28573 kg water
0
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
19
Construction Status
bullSchedule is TightbullDesigns and prototypes for all subsystems moving forwardbullComponent production begins early 2008bullAssembly begins MayJune 2008bullReady for shipment in January 2009bullAllows a 3 month contingency
Component purchases have begunTrip-T ASIC fabrication order being tendered
PhotosensorsSeveral dozen in Feb 500week starting in April (~11500 total)To be tendered shortly
Scintillator Production (3000 bars on hand)Fiber ampc
0
Wydaje się że sa to plany na 2008
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
20
TRACKER bdquoThe first role for the tracker is to isolate a clean sample of CCQE events
In order to do that both the proton (mostly in the FGD) and the muon track need to be reconstructed
Detecting the recoil proton allows to select a high purity CCQE samplerdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
21
Tracker consists of bull 3 TPCs bull 2 FGD modules
The FGDs are thin enough (lt 30 cm) that most of the penetrating particles produced in neutrino interactions especially muons will reach the TPCs where their momenta and charges will be measured by their bending in the magnetic field
The ND280 detector will contain two massive fine-grained detectors (FGDs) which provide the target mass for neutrino interactions as well as tracking of charged particles coming from the interaction vertex
bdquoThe FGDs form part of the ND280s tracker Its primary function is to measure the neutrino beams flux energy spectrum and flavor composition by observing charged current neutrino interactionsrdquo
TRACKERFGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
22
Light produced in scintillator bar is readout using a wavelength shifting (WLS) fibre coupled to MPPC
XY Modulle Construction Each module consists of
bullan X layer bulla Y layer and bulltwo G10 skins
currently 20 of 24 modules glued
Considerable RD was done for module gluing procedure Metal jig was constructed to ensure that X and Y layers were aligned andperpendicular
light injection with LEDs on every channel - analog sum trigger
Second FGD is composed of water layers interleaved with scintillatorMust measure CCQE cross-section on water since SuperK is water-based detector
TRACKERFGD
FGD provides target mass for tracker (2 x ~1 tonne) dimensions ~2m x ~2m x ~30cm
bullone all-plastic FGD bullone plastic with 6 x 25cm water panels FGD
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
23
Scintillator barsThe number of bars needed for
bullthe plastic FGD is 19230=5760 bullthe water-rich FGD 19214=2688 bars
The total number of bars is ~10000 The geometrical specications of each bar
bull Length (z dimension) =184321 mmbull Outside x and y dimensions =96 mmbull TiO2 thickness=025 mm (co-extruded bar coating)bull Active dimensions=91 mmbull Hole diameter=18 +- 03 mm
TRACKERFGD
February 2008 start of photosensor delivery February-April 2008 stringing of XY modules and mounting of photosensors May 2008 start FGD commissioning Summer 2008-Winter 2009 beam tests calibrationshakedown Summer 2009 ship to Tokai
Plany
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
24
TRACKERTPC
The proton momentum is soft so that some will stop before entering the TPC volume The TPC will also provide further information useful to study events with additional pion tracks
The CCQE represents 40 of the total neutrino cross-section at these energies and the TPC will provide 3-D information on the event this classication is expected to be relatively straightforward
It will also be important to distinguish the products from neutrino interactions inside the fiducial volume of the near detector from other beam related activity
In particular neutrino interactions in the magnet iron will produce many charged particles that will enter the fiducial volumeThe excellent 3D granularity of TPCs will allow these to be distinguished more easily than in a projective 2D trackerrdquo
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
25
TRACKERTPC
The geometry of the TPC follows from the constraints given the UA1 magnetThree TPCs are needed in order to measure the momenta of particles originating from the two FGDtargets The outer dimensions of each module are roughly 25 m 25 m in the plane perpendicular tothe neutrino beam direction and 10 m along the beam direction The transverse dimension is chosen to provide space between the inner wall of the magnet and the TPC modules for electromagnetic calorimeter and for a mechanical support cage The dimension along the beam direction is chosen to achieve the required momentum resolution including the necessary inactive elements The upstream TPC will measure backscattered particles from the upstream FGD as well as high momentum muons exiting the P0D in the forward direction
Geometria
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
26
Several parts have been machined (oversized) on the routerfinal machining to final size to be done once router calibration is under controlouter panels need final machining
Ar-CF4-iC4H10 Purifier design from ALICE
TRACKERTPC
Operation is considered at bullan electric field around 200 Vcm bullthe cathode being at a potential of 104857625 kV
inner panels underconstructionendplate under constructioncathode module frame not startedservice spacer in machine shopservice covers under construction
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
27
First tracks with AFTER based FEETRACKERTPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
28
The ECAL consists of lead-scintillator sandwich sampling calorimeter modules located around the ND280 inner detectors on all four sides and at the downstream end of the magnet
Barrel ECAL
The Electromagnetic Calorimeter comprises two sections The Tracker ECAL (TECAL) surrounds the FGDs and TPCs
bullThe main purpose of the Tracker ECAL is to aid the Tracker in fully reconstructing neutrino interactions bullIt detects reconstructs and identies particles leaving the tracking volume bullThe TECAL is also important for the energy measurement of electrons from beam ne
The P0D ECAL (gamma muon tagger) is a simpler device which helps to positively identify photons and muons escaping the P0DBoth ECAL sections tag interactions occurring outside the inner detectors which produce event signatures that can resemble those of signal neutrino interactions in the ducial volumes of the inner detectorsThe good cluster and MIP reconstruction capabilities of the ECALs will allow satisfactory background rejection to be performed
Ale chyba nie będzie działał w 2009r
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
29
SMRD bdquoThe principal tasks for the side muon range detector (SMRD) are to
(1) measure muon momenta and angle for CC-QE reactions to help determine the neutrino energy
(2) identify backgrounds from beam neutrino interactions in the iron yokes and in the cavity walls surrounding the detector and
(3)trigger on through going cosmic ray muons for calibration purposes of the inner detector components
Te miony z oddziaływań CC neutrin z wiązki powinien widzieć SMRD
Poza czasem spillu
W czasie spillu
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
30
1 counter (07x17x87 cm)Scintillator thickness 70 mmGroove depth 25 mmLY = 196 plusmn06 pe (19 Mar 2007)LY = 188 plusmn06 pe (10 Sept 2007)[readout with MRS-APD at INR]
Confirmed by test at LSU Light yield for SMRD prototype scintillator slab can be readout with 995 detection efficiency if average Ly=15peMIP
Tu dochodzą obejmy w ktoacutere wsuwane są MPPC ndash odczyt światła z 2 końcoacutew fibra
Liczniki są wsunięte w szczeliny w jarzmie
SMRD
Rogi nie są wypełnione
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
31
Bardzo skomplikowana obejma scyntylatoroacutew ale czy można mniejSMRDOd jakości względnego ustawienia C w studni zależy jak dobrze da się wypełnić szczeliny w jarzmie licznikami Planowana jest łapka do ew wymiany uszkodzonych detektoroacutew odczytuChyba nie możliwości wymiany uszkodzonych scyntylatoroacutew
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
32
SMRDw spillu
Top bottom
Left (right)
Liczba i rozmieszczenie licznikoacutew w szczelinach jarzma magnesu
Paweł Przewłocki
Rozmieszczenie modułoacutew wynika z 1 Wpływu materiału cewki na pęd
widocznych w SMRD mionoacutew2 Charakterystyk kątowych mionoacutew
z oddziaływań CC
Liczbascyntylatoroacutew 1120 786 1906 Zamoacutewienie 2000 szt
Problemem nie jest szerokość szczelin w modułach C (~17mm) w ktoacutere mają wejść liczniki (~8mm)
Jest względne ustawienie modułoacutew C ponieważ liczniki będą wsuwane w jarzmo PO złożeniu magnesu w studni
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
33
444
1 Odległość spill ndash spill 353 s (03 Hz)
2 Spill początek ndash koniec 517 s
3 W spillu 15 bunchy 60ns odległość 270 ns (całkowanie+reset)
4 Po spillu jeszcze 8 bdquobunchyrdquo (28s)
5 Czas czytania 15+8 bunchy = 74s
6 Wtedy przełączenie na tryger kosmiczny
WIĄZKA
spill
11 122 2 55 5
666
spillstart stop
Struktura czasowa wiązki i elektroniki
Czas na tryger kosmiczny (kalibrację) = 353s ndash (517+28+74)10-6s = ~353s
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
34
SMRDpoza
spillem Wieża - Segment w x y z
Na zebraniu w KEK była dyskusja o trygerze może skomentuje ktoś z jej uczestnikoacutew
Symulacja trygera
DetektoryWewnętrzne
ND280
SMRD jako tryger ndash GEOMETRIA
Widok w x-y
Piotr Mijakowski amp Karol Strykowski
muon
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
35
SMRD Production Responsibilities
1) Scintillator size and tolerances have been fixedPoziom 7 x 167 x 875 mmPion 7 x 175 x 875 mm
2) Scintillator production (+ chemical reflector)Preparation of Production in Progress at Uniplast (Rosja)
1000 detectors now1000 detectors by end of 2008
3) Groove milling (INR)4) QA of WLS fibers and scintillators gluing (INR)5) Endcap + optical connector Production of Mold has started(SofttouchUS)6) Assembly + packaging (INR)7) Photosensor tests at INR LSU Warsaw8) Slow Control (LSUWarsaw)9) Electronics testing (UPitt)10) Cooling if needed (Cracow) SMRD cooling system only required if coils are not chilled
SMRD a sprawa
polska
Krzysztof ZarembaRobert Sulej ~4000 MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
36
Detektor światła ndash liczy fotony z WLS Multi Pixel Photon Counter
ND280 ~70000 WLS fiber readout channels
pixels 400Active area 10-12 mm2
Gain ~106
Minimum PDE 12Bias voltage 25-70 VDark rate 1MHz (th = 05 pe)Pulse width 50 nsLife time stability very good Photosensor tests at
Kyoto INR LSU CSU TRIUMF Sheffield Warwick
MPPC 10x10 mm2 400 pixels
13x13 mm2 667 pixels
50 000 szt dla ND280Producent Hamamatsu
Main parameters PDE dark rate gain cross-talk are measured All MPPC parameters are stable within 5 accuracy after heat testHPK will provide simple tests 2 parameters - Operating bias voltage at 25oC for gain 75x105
- Dark rate at operating bias voltage
MPPC
Wymagania
także Politechnika Warszawska (KZ RS)
Działa w polu magnetycznym
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
37
Uwagi dot MPPC Bardzo nowy detektor ndash pojawił się w katalogach Hamamatsu na wiosnę 2007
1 Pierwsze zastosowanie w tej skali (~50 000 kanaloacutew) MPPC w eksperymencie
5 - tego wyboru
a) SMRD nie potrzebuje tak dużej liczby pikseli
b) Efektywność rejestracji fotonu maleje ze wzrostem liczby pikseli
c) Ten model MPPC nie figuruje w katalogach Hamamatsu z lata 2007
MPPC
2 MPPC są bardzo czułe na zmiany temperatury
a) Wzmocnienie maleje ze wzrostem temperatury
b) Liczba bdquoafterpulsoacutewrdquo rośnie ze wzrostem temperatury
3 Decyzja o zastosowaniu MPPC z liczbą pikseli = 675
4 + tego wyboru
a) Łatwiej jest zrobić alignement f MPPC 13 mm WSL 1mm
b) Wspoacutelny i standardowy dla całego ND280
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
38
ALEhellip
MPPC
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
39
analoguepipeline
Szybki sygnał 01 powyżej zadanego progu
Zasilanie globalne(~70V)
HVtrim dobrane dla pojedynczego MPPC (~0-5 V)
MPPC
2 kanały TRIPt MPPC o dużej i małej amplitudzie
MPPC Kabel Zasilanie TRIPt2kanały MPPC
MPPCinformacja
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
40
chip TRIgger and Pipeline with Timing)
Inputs of the TRIP-t are
bull the analog pulses from the fibers after amplification by the MPPCbull digital timing inputs to control eg the time window over which the
system should be sensitive to pulses
Outputs of the TRIP-t are (1) a digital signal to use for triggering (2) an analog pulse (~1V) that is proportional to the amplitude of the input
from the MPPC called the A-pulse (3) an analog pulse (~1V) that is proportional to the time between the firing
of the discriminator and the closing of the time-gate called the t-pulse
The chip contains an analog pipeline just before the final output drivers The A-pulse and t-pulse outputs are stored in analog pipelines
Outputs to form trigger signals are created by discriminators in the front end and readout quickly through the digital multiplexer
) TRIPt jest rodem z FERMILAB (D0) W ND280 są zmiany ktoacuterych przyczyn nie rozumiem
TRIPt
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
41
Beam line construction started Apr 2004 ND280 pit construction start Jul 2007 UA1 magnet installation Apr 2008 Completion of ND280 building Mar 2009 Neutrino beam line commissioning Apr 2009 ND280 Commissioning Oct 2009
Kalendarz prac w Japonii
Magnes bullinstalacja 04-05 2008bullzamknięty włączony
05-06 2009 oraz od 11 2009
SMRD bullInstalacja
goacutera ndash doacuteł 02ndash03 2009lewo ndash prawo 07ndash09 2009
Chłodzenie 04 2009ND280 Schedule(NEW) ( Simplified version ) (Uploaded on 2007-Mar-22)
T2K Physics run Nov 2009
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
42
Spill Structure
bull 15 batchesbull charge integrated in batches
Bunch Structure
Spill Structure
58ns 58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns
58ns
260ns260ns
58ns
353s 353s
517micros 517micros 517micros
integration resetChip Time Structure
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
43
preampvery simplified ndash
neglecting features not relevant to ND280 operation
integratereset
gain = 1 or 4
gain adjust123hellip8
x10
Vth
analogue pipeline
disc OP
Qin
discriminator
1pF
3pF
reset
TRIP-t Front-end architecture
bull only preamp gain affects signal feeding discriminatorndash no fine control (x1 or x4)
bull discriminator threshold Vth ndash common to all channels on chip
bull analogue bias settingsndash gain Vth etcndash programmable via serial interface
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
44
x10
1pF
reset
Vth
disc OP
analoguepipeline
Qin
~ 1V dynamic range available at preamp OP ~ similar voltage range
at x10 amp OP~ similar disc thresh
voltage adjustment range
single triptchannel
Gain Considerations
bull SiPMndash gain = 5 x 105 and Npelt500
bull 25 V CMOSndash dynamic ranges of internal circuits ~ 1V
bull implications for discriminator threshold rangendash 0 ndash 5 pe adjustment range then 5 pe equiv 1V at x10 OPndash 1V equiv 50 pe at preamp OPndash high gain channel will saturate at ~ 50 pe
bull effective threshold spreadndash +- 05 pe (measured ndash see later)
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
45
47k50V 0402
220pF50V0402
330pF100V0603
10pF100V0603
100pF100V0603
51RLV
0603
100nFLV
0402
1kLV 0402
trip-t
10pF100V 0603
HVglobal
HVtrim(0-5V)
cal testpulse
coax sheath not DCcoupled to GND
SiPM
47k50V 0402
HVglobal common to all SiPM channels on TFBHVtrim individual for each SiPM channel 5V adjustment range (choice of 81012 bit DAC precision)HVtrim applied to coax sheath ndash AC but not DC coupled to GND
significant no of passiveschannel ndash need careful high
density layout
SiPM TFB Connection
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern
Maria H Szeptycka ND280 - Guided TourKRAKOacuteW październik 2007
46
Trigger Path
SiPMdisc
FE FPGA(TFB)
output driver
Vth
amp
Trigger FPGA(GTM)
10-20 m
SCINTtrigger
TPCtrigger
bull FE FPGAndash channel mask (64ch)ndash look for trigger primitives
bull N hits in ~100 nsec windowbull tracks
ndash drive outputbull Trigger FPGA
ndash require certain FE FPGA hit pattern