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)

Chair of Experimentalphysik - Dense and Strange Hadronic Matter

Panjab University
VECC Kolkata
Yale University
University of Bergen
Johann Wolfgang Goethe University
GSI Helmholtz Center
Heidelberg University
Rheinische Friedrich-Wilhelms-Universität Bonn
Hungarian Academy of Sciences
University of Houston
Technical University of Munich
Cluster of Excellence E-conversion
Institute of Physics Bhubaneswar
University of São Paulo
Oak Ridge National Laboratory
University of Helsinki and Helsinki Institute of Physics
University of Tennessee
Lund University
Bose Institute
The Indian Institute of Technology Bombay
University of Zagreb
Niels Bohr Institutet
Wayne State University
University of Tokyo
Nagasaki Institute of Applied Science
Western Norway University of Applied Sciences
Zentrum für Technologietransfer und Telekommunikation (ZTT)
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
University of South-Eastern Norway
University of Oslo
University of Texas at Austin
Comenius University
Instituto de Ciencias Nucleares de la UNAM
Indian Institute of Technology Indore
University of Tübingen

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 - 21 Sep 2018

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{a71a01062cae4165be6b0b690c6ededf,

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 Gera and P. Ghosh and Ghosh, \{S. K.\}",

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",

issn = "0168-9002",

publisher = "Elsevier B.V.",

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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 - Gera,

AU - Ghosh, P.

AU - Ghosh, S. K.

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

UR - https://www.scopus.com/pages/publications/85049750425

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

Abstract

Keywords

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