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Stato progetto RPC A. Colaleo –INFN BARI. Sommario. Stato produzione Stato installazione e commissioning RPC nell’MTCC Phase 1 Phase 2 Attivita’ dopo l’MTCC Stato cablaggio Stato sistema monitoring del gas Stato dell’elettronica. Single & Double Gap Production. - PowerPoint PPT Presentation
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A. Colaleo 1
Stato produzione
Stato installazione e commissioning
RPC nell’MTCC Phase 1 Phase 2
Attivita’ dopo l’MTCC
Stato cablaggio
Stato sistema monitoring del gas
Stato dell’elettronica
Sommario
Stato progetto RPCA. Colaleo –INFN BARI
A. Colaleo 2
Produzione Single Gap completata: circa 3000 single gap prodotte e testate
Double Gap production completed
Single & Double Gap Production
0
10
20
30
40
50
60
70
80
90
100
10
0
30
0
50
0
70
0
90
0
11
00
13
00
15
00
17
00
19
00
21
00
23
00
25
00
27
00
29
00
Accettate
Scartate
16.5 % of rejection
Prodotte Accettate Scartate
1200 1144 56 (4.7 %)
A. Colaleo 3
Chamber Production
Chamber production: 448/480 chambers have been accepted at
test sites Bari – Pavia – Sofia
To finish production:
10 Chambers under test in Bari ready by the end of
September
22 Chambers in construction at General Tecnica 6 needed for next installation
ready by the end of October
A. Colaleo 4
Barrel
416 chambers already accepted through the ISR pipeline24 chambers under test – foreseen ready first week october8 chambers to be tested – foreseen ready end october
Final dressing•Final cooling, HV connectors, temperature sensors
Detector control •Gas leak •Threshold setting and reading•Current vs. HV•Long stability test (15-20 days @ 9200 V)
Performance •Single rate (hits count.) vs. HV •Noise rate (cluster count.) vs. HV•Cluster size vs. HV
Commissiong camere all’ISR
A. Colaleo 5
Barrel Commissiong camere all’ISR
420 camere sono state testate4 di queste ancora sotto test di stabilita’ in corrente
A. Colaleo 6
Settori 1-7 installati underground
Wheels+1/W+2/W0 installate eccetto settori 1-7
W-1, W-2 installati settori 10,11 + alcune MB4
Installazione
A. Colaleo 7
Coupling
Dopo l’accoppiamento all’ISR e prima dell’installazione a SX5: controlli di perdita di gas, intergrita’ HV, controllo di connettivita’ delle strip e sistema controllo soglie schede FE, controllo sistema cooling (RPC/DT/MC)
Dopo l’installazione :Connessione cavi di grounding
Gas system test:• Connessione al distributore di gas e
calibrazione flow cells • Controllo perdite gas• Equalizzazione dei flussi nella
stazione
Test prima e dopo installazione
A. Colaleo 8
Barrel
For each sector•HV/LV test •Noise •Current stability for 48 hours
Commissioning camere installate
Wheel +1• All basic test done • Chamber sect 5/RB2 replaced due to broken HV
cable
• 1 FEB connector replaced in sect 9/RB1• 1 HV connector replaced on sect 12/RB3
Wheel +2• All basic test done
• Chamber sect 12/RB3 replaced due to gas leak
• 3 Distribution Board replaced on sect 9/4 RB1 chambers (wrong threshold control via DT MC (backup line)).
• 1 FB replaced in sect 9 /RB2.
Wheel 0/-1/-2 ( 12 sectors)• Basic test done in all sector of W0,
excluded sect 4-5 • Broken HV connector in W0 sect 8 RB2• Discharging HV connector in W0 sect 6
RB2
• Gas rack for W-1, W-2 to be commissioned
A. Colaleo 9
Barrel
CERN 22 June 2006, CMS Plenary CMS RPC Collaboration
HV 9200 VHz/strip
Strip = 420 cm2
Current
Noise rate
HV 9200 V
Commissioning camere installate
< 0.25 Hz/cm2
< 1.5 microA
A. Colaleo 10
SX5 planning after the field mapping
W.Van Doninck
A. Benvenuti
A. Colaleo 11
Status
Detector installation
Attivita’ a SX5 dopo MTCC II
• YB-1: 24 DT - 48 RPC - QUASI TUTTE GIA’ ACCOPPIATE• Large MB4 : 8 Chambers - 16 RPC• YB-2: 26 Chambers - 52 RPC • YB0 feet: 2Chambers - 2 RPC• UX YB+2, YB+1: 16 Chambers - 32 RPC
• DT+RPC coupling must proceed at 3 chambers/day in order to match theinstallation rate during the first 3 weeks• UX installation rate of 2 chambers/day assumed for YB+2 and of 3 for YB+1
150 RPC da installare
A. Colaleo 12
Gas distributor commissioning on W-1, W-2
Gas system
W0 cabling
Cabling
Installation of LV boards in W+1 and W+2Installation of Linkboard on W+1 and W+2Functionality test of full link system
Electronics
Attivita’ a SX5 dopo MTCC II
W0 sector 4-5SX5 W-1, W-2 all sectorsUX W+1 , W+2 sect 1-7
Detector commissioning
A. Colaleo 13
MTCCTest the full chamber/electronics/DAQ/Software chain and trigger system
RPC Chamber
s
YB+1 S10: LBB with 15 LBs and RBC1YB+2 S10: LBB with 15 LBs,
S11: LBB with 3 LBs and RBC2
Trigger Crate with the 1 Trigger Board with:14 optical links from LBs, Stratix2 PAC mezzanine board,
Control Crate with CSCTTC crate with LTC, TTCci and TTCex
On Tower
Control Room
CB
FEB
FEB
FEB
Slave LBSU
CoderMaster LB
SU Coder
Trigger Board
PAC
PAC
PACGB&
SorterPAC
RMB
LTC
I2C
TC Backplane
Slave LBSU
Coder
RBC Trigger
LVDS signal
RBC
Data Concentrator
Card
Filter Farm
Phase 2
A. Colaleo 14
RPC triggers al MTCC
• patterns for the endcap and W+2 Sector 10 only: majority level 4/6• final geometry straight patterns on single strips for the tower 2 (W+1) (majority level
4/6)• "pointing to the tracker": based on OR of all strips of one eta partition (roll) of one
chamber, majority level 5/6, the 6th layer - RB4 (only middle strips) is required
• Separate triggers (LVDS signals) for each wheel to LTC
• Patterns based on OR of all strips of one eta partition (roll) of one chamber (i.e. one LB) calculated by each LB, no patterns crossing 2 wheels,
• Each chamber can be masked or forced,
• Configurable majority level, usually we used:
– 5/6 - trigger rate ~30 Hz per wheel
– 6/6 - trigger rate ~14 Hz per wheel W+2: Sect. 10
Sect. 11 Sect.10-11 patterns
ORRBC2
W+1: Sect. 10 RBC1
RBC
TB
TB and RBCs triggers were well synchronized to each other
A. Colaleo 15
Minor problems with the gas distribution. A faulty IR analyzer was often producing false alarms. Optimize gas bottle replacement.
Equalization of the gas flow among the different stations has been proved to be possible and no variation observed in B-Fied
Operation in open loop.
Interlock system is working (CAEN )Gas system control information not available in Control Room.
RPC al MTCC: servizi
Gas
Some of the chamber at T > 24 C° for few days. Very important to have stable and low temperature. Wheel W+2 at higher temperature with respect to W+1. To be understood.
Cooling
A. Colaleo 16
MTCC: LV/HV/FEB
LV stable system. Noise induced by the system on the detector is extremely low ( peak to peak ripple about 30 mVolts).
An unexpected instability of the current readout was found, not previously detected in the lab tests (B field or ADC instability?). CAEN at work
Only a couple of faulty connectors on the multi-polar HV cable on the patch panel side.
No faulty FEB. Threshold control to be improved to have the possibility of addressing a single board.
HV/LV
A. Colaleo 17
The final state machine works very well. System run smoothly reading 300 hardware channels. No problems found.The present DCS server was appropriate to deal with the existing hardware.
DSS: wrong gas mixture signal to DSS implemented for MTCC phase 2 problem in cooling circuit (low flow or high temperature) to be implemented in phase 2
MTCC:DCS and DSS
A. Colaleo 18
MTCC: Iguana Event Display
Combined offline RPC (green) and DT digis
RPC detector data were read out locally with TriggerBoard PAC diagnostic readout and offline converted to common data format of global DAQ standard CMSSW tools for unpacking and DQM used
Black = DT hitsGreen = RPC hits
DT global (4 stations) and Barrel RPC local data (6 layers) merged offline
A. Colaleo 19
Analisi preliminare: DQMOccupancy, noise, cluster size, noise maps. Refine threshold values. DT/RPC reconstruction tools needed.Occupancy, noise, cluster size, noise maps. Refine threshold values. DT/RPC reconstruction tools needed.
A. Colaleo 20
6/6 - trigger rate ~14 Hz per wheel
Efficiency plateau
RBC1 and RBC2 triggers vs. variation of the RPCs HV set points
A. Colaleo 21
MTCC II plans
• Complete trigger chain:LB → TB → HSB → FSB → GMT
• Final geometry – pointing to the vertex: 3 Sectors × 7 Towers 2 Trigger Crates × 2 TBs × 3(4) PACsFinal PAC and Ghost Buster and Sorter algorithms can be tested, no special firmware needed!
• PAC patterns – final patterns (vertex muons), but wider i.e. defined on 4 or 8 strips (to have better acceptance)
• Normal DAQ: 4 RMB mezzanines + DCC
Phase 2 will allow the RPC to run closely to the final configuration
Wars
aw
A. Colaleo 22
RPC cable status
• Cable detector – rack installation status: • W+2 and W+1 cabling completed (40 % of the cables on detector)
• Cables detector – rack for W0 produced to be tested Ready end of October
LB crates
LB crates installed and backplane cabled on both wheels (except X3 and X4 near)
A. Colaleo 23
RPC cable status
A. Colaleo 24
Work in progress-Production and installation of W0, W-1, W-2 -Routing of the long cables between detector hall and electronic house- patch panel organisation- production of cables not on detector
A. Colaleo 25
GAS monitoring
• Gas gain monitoring system– Sviluppo del conceptual design, approvato CSN1 maggio
2006 e parzialmente finanziato,
– Studio dei flussi di gas all’interno di RPC gaps tramite simulazione CFD volta a verificare il lavaggio efficace delle camere e l’eventuale ristagno di contaminanti
– Analisi SEM-EDS e diffrattometriche (c/o laboratori di Ingegneria Roma 1) su camere irraggiate alla GIF nel 2001,
– Studio di differenti sistemi di analisi gas: ph-metri, µGC analysis , F- specific eletrode
• Caratterizzazione del sistema di ricircolo del gas “Closed Loop”
– Campagna di misure sistematiche per la caratterizzazione chimica dei filtri impiegati
A. Colaleo 26
USC5UXC5
C2H
2F 4
/SF 6
/i-
C4H
10 /
H2O
Slow CtrlGC, p/T/RH/Ph
CMS
VENT
PU
RIF
IER
S
SGX Bldg
RPC TRIG2RPC TRIG1
RPC TRIG4RPC TRIG3
RPC PAD REF2RPC PAD REF1
RPC PAD MON6RPC PAD MON5
REFERENCE
MPX
half wheel lines
VENT
VENT
RPC PAD MON4
RPC PAD MON3RPC PAD MON2RPC PAD MON1
MONITOR
VENT
Gas Gain Monitor (conceptual design)• Monitoring continuo del punto di lavoro (efficienza, carica) con cosmici nel gas
building su 3 sottosistemi di RPC pads 50cmx50cm nello stesso telescopio1. REFERENCE con gas clean open-loop2. MONITOR “OUT” con gas closed-loop dopo CMS-RPC3. MONITOR “IN” con gas closed-loop dopo purifiers e prima di CMS
Studi di fattibilita’ con su RPC recuperati e sviluppo elettronica ad hoc a Frascati.
A. Colaleo 27
Studio del sistema di Closed Loop
Sono in corso campagne di misure sistematiche su campioni di filtri con metodi chimici, SEM/EDS e diffrattometrici.
• In operazione da Sept. 05 sul circuito di gas dell’ ISR – circa 110 l/h flusso totale– 30 linee – ma generalmente ~10 Ch. connessi– Percentuale di miscela fresca : 10% (RH 40%)
Da molti studi del sistema risulta che funziona correttamente per circa 20 giorni dopodiche’ si osserva innalzamento delle correnti in alcune camere. Le correnti tornano nei valori normali in seguito alla rigenerazione dei filtri
Studio del sistema di closed loop e’ cruciale per una operazione sicura degli RPC nell’esperimento: importante realizzare un test esaustivo all’ISR e alla GIF dopo installazione camere (Primavera 07)
A. Colaleo 28
•Receive optical link from RBCs
•Combine ORs from 1 Wheel and produce Wheel Cosmic Trigger Global Trigger as Technical Trigger
The full RBC production is expected to be available before the end of 2006
Progetto RPC Technical Trigger
Wheel-Based Cosmic TriggerWheel-Based Cosmic Trigger
UXC area USC area
Wheel Trigger
LBBox
RBCLBBox
LBBox
RBCLBBox
LBBox
RBCLBBox
LBBox
RBCLBBox
LBBox
RBCLBBox
LBBox
RBCLBBox
Barrel Wheel
TT
U
6 Fibers/wheel
Fiber GL
OB
AL
TR
IGG
ER
RBC (RPC Balcony Collector) Technical Trigger Unit
TT
UT
TU
TT
UT
TU
The design of the new firmware and the backplane for the Trigger Board-TTU will start in few weeks
The required functions are performed by the RPC Trigger Board (Warsaw): 3 TB for full the barrel
A. Colaleo 29
Progetto SORTER
RPC Trigger Electronics System (general view)
A. Colaleo 30
Half detector Sorter 2 Half detector Sorter 1
Final Sorter Board
Endcaps Outputs
Input from Trigger Crate
Barrel Outputs
Sorter Crate layout
Un crate completo e' stato prodotto, testato al 904 ed installatoUn backplane ed un Full sorter spare sono gia' stati prodotti e sono da testare,mentre sono in produzione due half-sorter spare.Algorimi del Sorter saranno testati al MTCC fase 2
Progetto SORTER
A. Colaleo 31
Conclusioni• Produzione e test delle camere in Italia termina in Ottobre
• Test al CERN procedono a ritmo sostenuto : 412 camere testate, 32 camere ancora da testare per la prossima installazione.
• Intensa attivita’ di accoppiamento/installazione e commissioning prevista per fine anno. Importante effettuare test dell’elettronica (Link system) in superficie
• MTCC costituisce un importante test di tutta la catena di trigger/DCS e di lettura del rivelatore: differenti tipi di trigger sono stati implementati con il sistema RPC durante il test.
Intensa attivita’ di software sull’DQM /event display per garantire una immediata interpretazione dei dati.
• Sviluppo del sistema di gas monitoring e comprensione sistema di ricircolo sono fondamentali per garantire le prestazioni delle camere nel tempo.
• Cablaggio 40 % dei cavi installati. Progressi nell’integrazione dei cavi con il resto
del sistema e degli altri rivelatori
• Iniziata la produzione e test dell’elettronica per RBC/TTU e Sorter.
A. Colaleo 32
CH type RB1 RB2/4 RB3 All
Built 132 262 131 525
Rejected 19 (14.4 %) 30 (11.5 %) 18 (13.7%) 67 (13 %)
Chamber Production per type
0
1
2
3
4
5
6
7
fino adAprile 03
luglio 03-febb 04
giugno 04-nov 04
Genn 05 -Agosto 05
Sett 05 -Luglio 06
scarti ISR
BA-PV
GT
0
10
20
30
40
50
60
70
80
90
100
fino adAprile 03
luglio 03-febb 04
giugno 04-nov 04
Genn 05 -Agosto 05
Sett 05 -Luglio 06
% ready
accett. BA-PV
on wait
CH scartate