Gas gain stabilisation in the ATLAS TRT detector
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.
- Research Organization:
- Indiana Univ., Bloomington, IN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- The ATLAS TRT Collaboration
- Grant/Contract Number:
- SC0010120
- OSTI ID:
- 1595582
- Journal Information:
- Journal of Instrumentation, Vol. 11, Issue 04; ISSN 1748-0221
- Publisher:
- Institute of Physics (IOP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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journal | December 2012 |
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journal | July 2000 |
Tools for the automation of large distributed control systems
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journal | June 2006 |
Particle identification using the time-over-threshold method in the ATLAS Transition Radiation Tracker
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journal | December 2001 |
The ATLAS TRT end-cap detectors
|
journal | October 2008 |
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