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David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 1
TPCs for TPCs for High Energy High Energy
PhysicsPhysicsDavid Attié
Max Chefdeville ,Paul Colas, Arnaud Giganon, Marco Zito, Ioannis Giomataris, François Pierre,
Jin Li, Yulan Li, Huirong Qi, Zhenwei Yang
CPPM Marseille 17 January 2008
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 2
Overview
• Introduction
• The LC-TPC R&D Collaboration
• Saclay-Tsinghua University TPCs R&D for HEP collaboration
• Saclay & Lanzhou interests
• Conclusion
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 3
Micromegas & GEMs (MPGD)
50 µm
40 kV/cm
~1000 µm
1 kV/cm
GEM
• 2- or 3- stage amplification
• easy operation
• low field above the electronics
• low discharge probability~50 µm
80 kV/cm
Micromegas
• simplicity
• single stage of amplification
• natural ion feedback suppression
• discharges non destructive
Technology choice for Linear Collider TPC: Micro Pattern Gaseous Detector• more robust than wires
• easier to manufacture
• No E×B effect
• better ageing properties
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 4
ILC Detector Concept Studies
SiD LDC GLD 4-th
Tracker Si-stripTPC + Si-strip
TPC + Si-strip
TPC or DC
CalorimeterPFARin=1.27m
PFARin=1.6m
PFARin=2.1m
CompensatingRin=1.5m
B 5T 4T 3T 3.5TNo return yoke
BRCAL2 8.1 Tm2 10.2 Tm2 13.2 Tm2 (non-PFA)
Estore 1.4 GJ 1.7 GJ 1.6 GJ2.7 GJDual solenoid
SizeR=6.45m|Z|=6.45m
R=6.0m|Z|=5.6m
R=7.2m|Z|=7.5m
R=5.5m|Z|=6.4m
LDC + GLD ILD
ILD
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 5
LC-TPC Collaboration
41 institutes
120 physicists
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 6
LC-TPC Collaboration Board
LC-TPC Collaboration
Louisiana Tech: Lee Sawyer
Americas:Dean Karlen
Europe:Jan Timmermans
Asia: Takeshi Matsuda
RegionalCoordinators:
LBNL: Dave Nygren
Indiana: Rick Van Kooten
Cornell: Dan Peterson
Victoria: Dean Karlen
Montreal: Jean-Pierre Martin
Carleton University: Madhu Dixit
Freiburg: Andreas Bamberger
LBNL: Dave Nygren
Eudet: Joachim Mnich
Desy/Uni-Hamburg: Ties Behnke
Bonn: Klaus Desch
Aachen: Stefan Roth
LAL/IPN Orsay: V. Lepeltier
Rostock: Henning Schroeder
MPI-Munich: Ariane Frey
Siegen: Ivor Fleck
Lund: Leif Jönsson
NIKHEF: Jan Timmermans
CERN: Michael Hauschild
St.Peterburg: Anatoliy Krivchitch
Novosibirsk: Alexei Buzulutskov
Ahiroshima,KEK, Kinki University,Saga University,Kogakuin University,Tokyo University A&T,University of Tokyo,Tsukuba University,Mindanao:Akira Sugiyama
Tsinghua: Yuanning Gao
Col
labo
ratio
n B
oard
Mem
bers
:
Saclay: Paul Colas
Goals: This working group plans
to understand how to build
a super-high-performance TPC
for the linear collider physics
up to 1 TeV
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 7
Berkeley Saclay LAL-Orsay
Readout anode pad plane:
1024 pads ten rows
2x10 mm2
pads
1x10 mm2pads
Saclay: TPC Micromegas (2004)
2 T magnet at Saclay
60 m pitch
50 m gap
Copper mesh
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 8
Saclay: bulk-Micromegas prototypes for T2K
Saclay Test Bench
Test of MM1_001 detector with a 55Fe source
Micromegas prototypes: • Bulk: 34x36 cm2, 128 m gap • 1728 pads of 6.9x9 mm²
HARP test at CERN (PS/T9)
MM1 detector + FEE + Cooling system
HARP solenoid (0.7 T)
Field cage1.5 m drift length
• Sep. 19th – Oct. 3rd 2007 (Analysis in progress)• Electronics AFTER designed by Saclay people
By T2K/TPC-Europe
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 9
Saclay: bulk-Micromegas prototypes for T2K
Signal from 55Fe source
= 8.5% rms @ 5.9 keV
= ~8% rms @ 5.9 keV
Saclay Lab Test HARP test at CERN (PS/T9)
Energy resolution consistent with lab. test results
• E = 160 V/cm, B = 0.2 T• Source located at 1.54 m from MM detector
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 10
Saclay: bulk-Micromegas prototypes for T2K
15 GeV/c p-Pb interactions in front of the TPCCosmic rays in the
TPCY
X
T
Y
55Fe source
HARP test: events display
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 11
• Carleton TPC + 10 x 10 cm² Micromegas (50 μm gap) + resistive anode used to disperse the charge(128 pad of 2x6 mm² pads)
Saclay: 5 T cosmic-ray test at DESY
Extrapolate to B = 4T at 2 m drift distance: Resolution of Tr 80 m will be possible !!!
50 m
Dixit, Attié, et al., NIMA 581, 254 (2007)
5 T magnet at DESY + Carleton TPC
Resistive anode
Micromegas mesh
Carleton TPC
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 12
Saclay: digital TPC using TimePix chip
•TimePix chip (256x256 pixels of 55 μm) + SiProt 20 μm + Micromegas
6 cm
55Fe photons in Ar/Iso (95:5)
Time mode
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 13
Tsinghua: TPC prototype with GEM Readout
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 14
Tsinghua: 1 T cosmic-ray test at KEK
Test in Dec. 2007
Preliminary results !
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 15
Yuanning Gao:
• Organiser of the LC-TPC School Tsinghua Univ/CCAST
• Director of Center for HEP, Tsinghua University
Tsinghua: LC-TPC school in Januray 2008
• Last week, Paul Colas gave lectures at a school on TPCs at the Tsinghua University in Beijing
• There are about 50 students from 10 universities in China and Japan, and one French PhD student
• Max Chefdeville from Saclay and NIKHEF
China Center for Advanced Science and Technology
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 16
Collaboration prospects
Yuanning Gao (dir. of Yuanning Gao (dir. of CHEP)CHEP)
Yulan LiYulan Li
Max Max ChefdevilleChefdeville
Zhenwei Zhenwei YangYang
Paul ColasPaul Colas
Tsinghua:
Saclay:
•LC-TPC collaboration
•PC board for the ILC
Large Prototype test
•Tests of Bulk Micromegas
•Participation in RD51
a world-wide MPGD R&D
collaboration (CERN)
Saclay Saclay Tsinghua Tsinghua
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 17
TPCHEP: TPCs for High Energy Physics
Members
French Group Chinese Group
Name Title Affiliation Name Title Affiliation
Leader : P. Colas Dr. DAPNIA Leader : Yulan Li Prof. Tsinghua
M. Chefdeville student NIKHEF/DAPNIA
Jin Li Prof. IHEP & Tsinghua
M. Zito Dr DAPNIA Huirong Qi Dr Tsinghua
A. Giganon Mr DAPNIA Bo Li student
Tsinghua
I. Giomataris Dr DAPNIA Ting Li student
Tsinghua
F. Pierre Dr DAPNIA
Mission destinatio
ns
One 8-day visit for P. Colas and M. Chefdeville for a TPC school and common work.One 7-day visit for Li Yulan and Li Jin at DAPNIA
Summaryof
Project
Time Projection Chambers are very successful trackers as they allow 3-D reconstruction of tracks with a minimum amount of matter. The French-Chinese group is interested in developing Micropattern TPCs for High Energy experiments as T2K-ND280 and an ILC detector.DAPNIA has a long experience in Micropattern TPC R&D and Tsinghua is testing a 3-GEM TPC. Both teams wish to cross-fertilize, sharing experience and industrial contacts. DAPNIA and Tsinghua are both members of the LC-TPC collaboration, the next goal of which is to operate a large TPC prototype in DESY in the next 2 years. We plan to contribute together to a ‘TPC winter school’ in January 2008, and to deepen our contacts with the Micromegas team in Lanzhou University
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 18
Saclay-Lanzhou: initial contact
Seminar given
by Paul Colas at
School of Nulear Science
And Technology
(Lanzhou)
Paul Colas
Xiadong Zhang
(Institute of Modern Physiscs)
Students
Seminar
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 19
Visit of the Institute of Modern Physics (Lanzhou)
Micromegas (fishing wires for gap spacer)
Fast neutron tomography
Gas detector lab
Highly charged ion beam
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 20
Lanzhou & Saclay interests
Lanzhou:
• Atomic physics with heavily charged ions (ion beam trap facility)
• Fast neutron detection with Micromegas
• GEM TPC for PANDA
• Simulation of GEM and Micromegas
• Acquiring ~1000 channels of integrated electronic channels (for muon radiography)
• GEP-III experiment and hypernuclear physics at Jefferson lab
• There are 4 to 7 positions for Chinese students to do their PhD work abroad
Saclay:
• Development of Micromegas, optimization for various applications in HEP, Nuclear Physics and dark matter search
• Resistive bulk development
• Digital TPC development (TimePix)
• Ready to welcome students and postdocs from China
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 21
Conclusion
• Saclay and Tsinghua are members of the LC-TPC collaboration
• Large Prototype final design (plan in 2008) will help the two labs to get closer
• Ready to welcome Chinese students in France
• Towards the FJPPL & FCPPL, a France-China-Japan collaboration ?
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 22
Thank you very much !
Merci beaucoup !
duō xiè
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 23
Backup slides
David.Attie@cea.fr FCPPL, Marseille – January 17th, 2008 24
Bulk Micromegas technology
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