Particle identification studies with a full-size 4-GEM prototype for the ALICE TPC upgrade

(ALICE TPC Collaboration)

doi:10.1016/j.nima.2018.06.084

Particle identification studies with a full-size 4-GEM prototype for the ALICE TPC upgrade

(ALICE TPC Collaboration)

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

A large Time Projection Chamber is the main device for tracking and charged-particle identification in the ALICE experiment at the CERN LHC. After the second long shutdown in 2019/20, the LHC will deliver Pb beams colliding at an interaction rate of about 50 kHz, which is about a factor of 50 above the present readout rate of the TPC. This will result in a significant improvement on the sensitivity to rare probes that are considered key observables to characterize the QCD matter created in such collisions. In order to make full use of this luminosity, the currently used gated Multi-Wire Proportional Chambers will be replaced. The upgrade relies on continuously operated readout detectors employing Gas Electron Multiplier technology to retain the performance in terms of particle identification via the measurement of the specific energy loss by ionization dE/dx. A full-size readout chamber prototype was assembled in 2014 featuring a stack of four GEM foils as an amplification stage. The performance of the prototype was evaluated in a test beam campaign at the CERN PS. The dE/dx resolution complies with both the performance of the currently operated MWPC-based readout chambers and the challenging requirements of the ALICE TPC upgrade program. Detailed simulations of the readout system are able to reproduce the data.

Original language	English
Pages (from-to)	215-223
Number of pages	9
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	903
DOIs	https://doi.org/10.1016/j.nima.2018.06.084
State	Published - Sep 21 2018

Funding

The ALICE TPC Collaboration acknowledges the following funding agencies for their support in the TPC Upgrade: Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Brasil; Ministry of Science and Education, Croatia; The Danish Council for Independent Research - Natural Sciences, the Carlsberg Foundation and Danish National Research Foundation (DNRF), Denmark; Helsinki Institute of Physics (HIP) and Academy of Finland, Finland; Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF), GSI Helmholtzzentrum für Schwerionenforschung GmbH, DFG Cluster of Excellence “Origin and Structure of the Universe” The Helmholtz International Center for FAIR (HIC for FAIR) and the ExtreMe Matter Institute EMMI at the GSI Helmholtzzentrum für Schwerionenforschung, Germany; National Research, Development and Innovation Office, Hungary; Department of Atomic Energy Government of India (DAE) and Department of Science and Technology, Government of India (DST), India; Nagasaki Institute of Applied Science (IIST) and the University of Tokyo, Japan; Fondo de Cooperación Internacional en Ciencia y Technología (FONCICYT), Mexico; The Research Council of Norway, Norway; Ministry of Education, Science, Research and Sport of the Slovak Republic, Slovakia; Swedish Research Council (VR), Sweden; United States Department of Energy, Office of Nuclear Physics (DOE NP), USA. The ALICE TPC Collaboration acknowledges the following funding agencies for their support in the TPC Upgrade: Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Brasil ; Ministry of Science and Education, Croatia ; The Danish Council for Independent Research - Natural Sciences , the Carlsberg Foundation and Danish National Research Foundation (DNRF), Denmark ; Helsinki Institute of Physics (HIP) and Academy of Finland, Finland ; Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF) , GSI Helmholtzzentrum für Schwerionenforschung GmbH , DFG Cluster of Excellence “Origin and Structure of the Universe”, The Helmholtz International Center for FAIR (HIC for FAIR) and the ExtreMe Matter Institute EMMI at the GSI Helmholtzzentrum für Schwerionenforschung, Germany ; National Research, Development and Innovation Office, Hungary ; Department of Atomic Energy Government of India (DAE) and Department of Science and Technology, Government of India (DST), India ; Nagasaki Institute of Applied Science (IIST) and the University of Tokyo, Japan ; Fondo de Cooperación Internacional en Ciencia y Technología (FONCICYT), Mexico ; The Research Council of Norway, Norway ; Ministry of Education, Science, Research and Sport of the Slovak Republic, Slovakia ; Swedish Research Council (VR), Sweden ; United States Department of Energy, Office of Nuclear Physics (DOE NP), USA .

Funders	Funder number
DFG Cluster of Excellence “Origin and Structure of the Universe
Helsinki Institute of Physics
Ministry of Education, Science, Research and Sport
Ministry of Science and Education, Croatia
Nagasaki Institute of Applied Science
U.S. Department of Energy
Nuclear Physics
Natur og Univers, Det Frie Forskningsråd
Science and Technology Facilities Council	GRIDPP
Department of Science and Technology, Ministry of Science and Technology, India
Department of Atomic Energy, Government of India
Danmarks Grundforskningsfond
Fundação de Amparo à Pesquisa do Estado de São Paulo
Academy of Finland
Bundesministerium für Bildung und Forschung
Carlsbergfondet
Ministerstvo školstva, vedy, výskumu a športu Slovenskej republiky
Vetenskapsrådet
University of Tokyo
Norges Forskningsråd
Fondo de Cooperación Internacional en Ciencia y Tecnología
Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie
GSI Helmholtzzentrum für Schwerionenforschung
Nemzeti Kutatási Fejlesztési és Innovációs Hivatal
Helmholtz International Center for FAIR
ExtreMe Matter Institute, GSI Helmholtzzentrum für Schwerionenforschung
Indian Institute of Space Science and Technology

Keywords

ALICE
Gas Electron Multiplier
Particle identification
Specific energy loss
Time Projection Chamber

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10.1016/j.nima.2018.06.084

Cite this

@article{589b5fd32c6248fa8d0acc2eecb22ff6,

title = "Particle identification studies with a full-size 4-GEM prototype for the ALICE TPC upgrade",

abstract = "A large Time Projection Chamber is the main device for tracking and charged-particle identification in the ALICE experiment at the CERN LHC. After the second long shutdown in 2019/20, the LHC will deliver Pb beams colliding at an interaction rate of about 50 kHz, which is about a factor of 50 above the present readout rate of the TPC. This will result in a significant improvement on the sensitivity to rare probes that are considered key observables to characterize the QCD matter created in such collisions. In order to make full use of this luminosity, the currently used gated Multi-Wire Proportional Chambers will be replaced. The upgrade relies on continuously operated readout detectors employing Gas Electron Multiplier technology to retain the performance in terms of particle identification via the measurement of the specific energy loss by ionization dE/dx. A full-size readout chamber prototype was assembled in 2014 featuring a stack of four GEM foils as an amplification stage. The performance of the prototype was evaluated in a test beam campaign at the CERN PS. The dE/dx resolution complies with both the performance of the currently operated MWPC-based readout chambers and the challenging requirements of the ALICE TPC upgrade program. Detailed simulations of the readout system are able to reproduce the data.",

keywords = "ALICE, Gas Electron Multiplier, Particle identification, Specific energy loss, Time Projection Chamber",

author = "{(ALICE TPC Collaboration)} and Aggarwal, {M. M.} and Z. Ahammed and S. Aiola and J. Alme and T. Alt and W. Amend and A. Andronic and V. Anguelov and H. Appelsh{\"a}user and M. Arslandok and R. Averbeck and M. Ball and Barnaf{\"o}ldi, {G. G.} and E. Bartsch and R. Bellwied and G. Bencedi and M. Berger and N. Bialas and P. Bialas and L. Bianchi and S. Biswas and L. Boldizs{\'a}r and L. Bratrud and P. Braun-Munzinger and M. Bregant and Britton, {C. L.} and Brucken, {E. J.} and H. Caines and Castro, {A. J.} and S. Chattopadhyay and P. Christiansen and Clonts, {L. G.} and Cormier, {T. M.} and S. Das and S. Dash and A. Deisting and S. Dittrich and Dubey, {A. K.} and R. Ehlers and M. Engel and F. Erhardt and Ezell, {N. B.} and L. Fabbietti and U. Frankenfeld and Gaardh{\o}je, {J. J.} and C. Garabatos and P. Gasik and Read, {K. F.} and J. Schambach and Schmidt, {N. V.}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = sep,

day = "21",

doi = "10.1016/j.nima.2018.06.084",

language = "English",

volume = "903",

pages = "215--223",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

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TY - JOUR

T1 - Particle identification studies with a full-size 4-GEM prototype for the ALICE TPC upgrade

AU - (ALICE TPC Collaboration)

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Aiola, S.

AU - Alme, J.

AU - Alt, T.

AU - Amend, W.

AU - Andronic, A.

AU - Anguelov, V.

AU - Appelshäuser, H.

AU - Arslandok, M.

AU - Averbeck, R.

AU - Ball, M.

AU - Barnaföldi, G. G.

AU - Bartsch, E.

AU - Bellwied, R.

AU - Bencedi, G.

AU - Berger, M.

AU - Bialas, N.

AU - Bialas, P.

AU - Bianchi, L.

AU - Biswas, S.

AU - Boldizsár, L.

AU - Bratrud, L.

AU - Braun-Munzinger, P.

AU - Bregant, M.

AU - Britton, C. L.

AU - Brucken, E. J.

AU - Caines, H.

AU - Castro, A. J.

AU - Chattopadhyay, S.

AU - Christiansen, P.

AU - Clonts, L. G.

AU - Cormier, T. M.

AU - Das, S.

AU - Dash, S.

AU - Deisting, A.

AU - Dittrich, S.

AU - Dubey, A. K.

AU - Ehlers, R.

AU - Engel, M.

AU - Erhardt, F.

AU - Ezell, N. B.

AU - Fabbietti, L.

AU - Frankenfeld, U.

AU - Gaardhøje, J. J.

AU - Garabatos, C.

AU - Gasik, P.

AU - Read, K. F.

AU - Schambach, J.

AU - Schmidt, N. V.

PY - 2018/9/21

Y1 - 2018/9/21

N2 - A large Time Projection Chamber is the main device for tracking and charged-particle identification in the ALICE experiment at the CERN LHC. After the second long shutdown in 2019/20, the LHC will deliver Pb beams colliding at an interaction rate of about 50 kHz, which is about a factor of 50 above the present readout rate of the TPC. This will result in a significant improvement on the sensitivity to rare probes that are considered key observables to characterize the QCD matter created in such collisions. In order to make full use of this luminosity, the currently used gated Multi-Wire Proportional Chambers will be replaced. The upgrade relies on continuously operated readout detectors employing Gas Electron Multiplier technology to retain the performance in terms of particle identification via the measurement of the specific energy loss by ionization dE/dx. A full-size readout chamber prototype was assembled in 2014 featuring a stack of four GEM foils as an amplification stage. The performance of the prototype was evaluated in a test beam campaign at the CERN PS. The dE/dx resolution complies with both the performance of the currently operated MWPC-based readout chambers and the challenging requirements of the ALICE TPC upgrade program. Detailed simulations of the readout system are able to reproduce the data.

AB - A large Time Projection Chamber is the main device for tracking and charged-particle identification in the ALICE experiment at the CERN LHC. After the second long shutdown in 2019/20, the LHC will deliver Pb beams colliding at an interaction rate of about 50 kHz, which is about a factor of 50 above the present readout rate of the TPC. This will result in a significant improvement on the sensitivity to rare probes that are considered key observables to characterize the QCD matter created in such collisions. In order to make full use of this luminosity, the currently used gated Multi-Wire Proportional Chambers will be replaced. The upgrade relies on continuously operated readout detectors employing Gas Electron Multiplier technology to retain the performance in terms of particle identification via the measurement of the specific energy loss by ionization dE/dx. A full-size readout chamber prototype was assembled in 2014 featuring a stack of four GEM foils as an amplification stage. The performance of the prototype was evaluated in a test beam campaign at the CERN PS. The dE/dx resolution complies with both the performance of the currently operated MWPC-based readout chambers and the challenging requirements of the ALICE TPC upgrade program. Detailed simulations of the readout system are able to reproduce the data.

KW - ALICE

KW - Gas Electron Multiplier

KW - Particle identification

KW - Specific energy loss

KW - Time Projection Chamber

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U2 - 10.1016/j.nima.2018.06.084

DO - 10.1016/j.nima.2018.06.084

M3 - Article

AN - SCOPUS:85049750425

SN - 0168-9002

VL - 903

SP - 215

EP - 223

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

Particle identification studies with a full-size 4-GEM prototype for the ALICE TPC upgrade

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Keywords

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