Performance simulation studies for the ALICE TPC GEM upgrade
(2016) In Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 824. p.548-550- Abstract
To be able to exploit the anticipated interaction rate of 50 kHz in Pb-Pb collisions during run 3 of the LHC (beyond 2019), the ALICE TPC will be upgraded to allow continuous readout. As this is not possible with the current Multi Wire Proportional Chamber (MWPC) based amplification, the readout will be replaced with Gas Electron Multiplier (GEM) readout chambers that can suppress ~ 99% of the ion back flow. The space charge of the remaining 1% ion back flow, however, will cause significant distortions to the measured tracks of order cm. Simulation studies to characterize the distortions and test correction strategies have been performed, which show that the intrinsic momentum resolution, without these distortions, can be recovered.
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https://lup.lub.lu.se/record/28a181b9-4e6b-44b9-af21-65d63f0234b6
- author
- Ljunggren, M. LU
- organization
- publishing date
- 2016-07-11
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- GEM, Micro-pattern gas detectors, TPC, Tracking detectors
- in
- Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- volume
- 824
- pages
- 3 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:84954306680
- ISSN
- 0168-9002
- DOI
- 10.1016/j.nima.2015.12.059
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2016 The Author. Published by Elsevier B.V. All rights reserved.
- id
- 28a181b9-4e6b-44b9-af21-65d63f0234b6
- date added to LUP
- 2022-03-29 10:26:34
- date last changed
- 2023-01-01 20:59:49
@article{28a181b9-4e6b-44b9-af21-65d63f0234b6, abstract = {{<p>To be able to exploit the anticipated interaction rate of 50 kHz in Pb-Pb collisions during run 3 of the LHC (beyond 2019), the ALICE TPC will be upgraded to allow continuous readout. As this is not possible with the current Multi Wire Proportional Chamber (MWPC) based amplification, the readout will be replaced with Gas Electron Multiplier (GEM) readout chambers that can suppress ~ 99% of the ion back flow. The space charge of the remaining 1% ion back flow, however, will cause significant distortions to the measured tracks of order cm. Simulation studies to characterize the distortions and test correction strategies have been performed, which show that the intrinsic momentum resolution, without these distortions, can be recovered.</p>}}, author = {{Ljunggren, M.}}, issn = {{0168-9002}}, keywords = {{GEM; Micro-pattern gas detectors; TPC; Tracking detectors}}, language = {{eng}}, month = {{07}}, pages = {{548--550}}, publisher = {{Elsevier}}, series = {{Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment}}, title = {{Performance simulation studies for the ALICE TPC GEM upgrade}}, url = {{http://dx.doi.org/10.1016/j.nima.2015.12.059}}, doi = {{10.1016/j.nima.2015.12.059}}, volume = {{824}}, year = {{2016}}, }