[email protected], Marseille – January 17 th, 20081 TPCs for High Energy Physics David Attié Max Chefdeville,Paul Colas, Arnaud Giganon, Marco Zito,

[email protected] 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


Overview

• Introduction

• The LC-TPC R&D Collaboration

• Saclay-Tsinghua University TPCs R&D for HEP collaboration

• Saclay & Lanzhou interests

• Conclusion


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


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


LC-TPC Collaboration

41 institutes

120 physicists


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


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


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



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



15 GeV/c p-Pb interactions in front of the TPCCosmic rays in the

TPCY

X

T

Y

55Fe source

HARP test: events display


• 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


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


Tsinghua: TPC prototype with GEM Readout


Tsinghua: 1 T cosmic-ray test at KEK

Test in Dec. 2007

Preliminary results !


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


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


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


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


Visit of the Institute of Modern Physics (Lanzhou)

Micromegas (fishing wires for gap spacer)

Fast neutron tomography

Gas detector lab

Highly charged ion beam


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


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 ?


Thank you very much !

Merci beaucoup !

duō xiè


Backup slides


Bulk Micromegas technology

Documents

[email protected], Marseille – January 17 th, 20081 TPCs for High Energy Physics David Attié Max Chefdeville,Paul Colas, Arnaud Giganon, Marco Zito,