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Recent aging studies for the ATLAS transition radiation tracker

Capeans et al.,, M; Åkesson, Torsten LU ; Eerola, Paula LU ; Mjörnmark, Ulf LU ; Lundberg, Björn LU and Driouichi, Chafik LU (2004) IEEE 2003 Nuclear Science Symposium (NSS) and Medical Imaging Conference (MIC) including Sessions on Nuclear Power Systems In IEEE Transactions on Nuclear Science 51. p.960-967
Abstract
The transition radiation tracker (TRT) is one of the three subsystems of the inner detector of the ATLAS experiment. It is designed to operate for 10 yr at the LHC, with integrated charges of /spl sim/10 C/cm of wire and radiation doses of about 10 Mrad and 2/spl times/10/sup 14/ neutrons/cm/sup 2/. These doses translate into unprecedented ionization currents and integrated charges for a large-scale gaseous detector. This paper describes studies leading to the adoption of a new ionization gas regime for the ATLAS TRT. In this new regime, the primary gas mixture is 70%Xe-27%CO/sub 2/-3%O/sub 2/. It is planned to occasionally flush and operate the TRT detector with an Ar-based ternary mixture, containing a small percentage of CF/sub 4/, to... (More)
The transition radiation tracker (TRT) is one of the three subsystems of the inner detector of the ATLAS experiment. It is designed to operate for 10 yr at the LHC, with integrated charges of /spl sim/10 C/cm of wire and radiation doses of about 10 Mrad and 2/spl times/10/sup 14/ neutrons/cm/sup 2/. These doses translate into unprecedented ionization currents and integrated charges for a large-scale gaseous detector. This paper describes studies leading to the adoption of a new ionization gas regime for the ATLAS TRT. In this new regime, the primary gas mixture is 70%Xe-27%CO/sub 2/-3%O/sub 2/. It is planned to occasionally flush and operate the TRT detector with an Ar-based ternary mixture, containing a small percentage of CF/sub 4/, to remove, if needed, silicon pollution from the anode wires. This procedure has been validated in realistic conditions and would require a few days of dedicated operation. This paper covers both performance and aging studies with the new TRT gas mixture. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
IEEE Transactions on Nuclear Science
volume
51
pages
960 - 967
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
IEEE 2003 Nuclear Science Symposium (NSS) and Medical Imaging Conference (MIC) including Sessions on Nuclear Power Systems
external identifiers
  • Scopus:3342996181
DOI
10.1109/TNS.2004.829496
language
English
LU publication?
no
id
434b6a7f-2ad2-4134-9ad0-f5ad411d4a99 (old id 777460)
alternative location
http://ieeexplore.ieee.org/iel5/23/29128/01312000.pdf?tp=&arnumber=1312000&isnumber=29128
date added to LUP
2008-01-25 11:42:51
date last changed
2016-10-13 04:37:23
@misc{434b6a7f-2ad2-4134-9ad0-f5ad411d4a99,
  abstract     = {The transition radiation tracker (TRT) is one of the three subsystems of the inner detector of the ATLAS experiment. It is designed to operate for 10 yr at the LHC, with integrated charges of /spl sim/10 C/cm of wire and radiation doses of about 10 Mrad and 2/spl times/10/sup 14/ neutrons/cm/sup 2/. These doses translate into unprecedented ionization currents and integrated charges for a large-scale gaseous detector. This paper describes studies leading to the adoption of a new ionization gas regime for the ATLAS TRT. In this new regime, the primary gas mixture is 70%Xe-27%CO/sub 2/-3%O/sub 2/. It is planned to occasionally flush and operate the TRT detector with an Ar-based ternary mixture, containing a small percentage of CF/sub 4/, to remove, if needed, silicon pollution from the anode wires. This procedure has been validated in realistic conditions and would require a few days of dedicated operation. This paper covers both performance and aging studies with the new TRT gas mixture.},
  author       = {Capeans et al.,, M and Åkesson, Torsten and Eerola, Paula and Mjörnmark, Ulf and Lundberg, Björn and Driouichi, Chafik},
  language     = {eng},
  pages        = {960--967},
  publisher    = {ARRAY(0xbad26d0)},
  series       = {IEEE Transactions on Nuclear Science},
  title        = {Recent aging studies for the ATLAS transition radiation tracker},
  url          = {http://dx.doi.org/10.1109/TNS.2004.829496},
  volume       = {51},
  year         = {2004},
}