TY  - JOUR
AU  - ATLAS TRT collaboration (Mindur, B. et al
AU  - Mitsou, V. A.
AU  - Valls Ferrer, J. A.
PY  - 2016
DA  - 2016//
TI  - Gas gain stabilisation in the ATLAS TRT detector
T2  - J. Instrum.
JO  - Journal of Instrumentation
SP  - P04027 - 19pp
VL  - 11
PB  - Iop Publishing Ltd
KW  - Gaseous detectors
KW  - Particle tracking detectors (Gaseous detectors)
KW  - Transition radiation detectors
KW  - Wire chambers (MWPC
KW  - Thin-gap chambers
KW  - drift chambers
KW  - drift tubes
KW  - proportional
KW  - chambers etc)
AB  - The ATLAS (one of two general purpose detectors at the LHC) Transition Radiation Tracker (TRT) is the outermost of the three tracking subsystems of the ATLAS Inner Detector. It is a large straw-based detector and contains about 350,000 electronics channels. The performance of the TRT as tracking and particularly particle identification detector strongly depends on stability of the operation parameters with most important parameter being the gas gain which must be kept constant across the detector volume. The gas gain in the straws can vary significantly with atmospheric pressure, temperature, and gas mixture composition changes. This paper presents a concept of the gas gain stabilisation in the TRT and describes in detail the Gas Gain Stabilisation System (GGSS) integrated into the Detector Control System (DCS). Operation stability of the GGSS during Run-1 is demonstrated.
SN  - 1748-0221
UR  - https://doi.org/10.1088/1748-0221/11/04/P04027
DO  - 10.1088/1748-0221/11/04/P04027
LA  - English
N1  - WOS:000375746400046
ID  - ATLASTRTcollaborationMindur_etal2016
ER  -