Gas gain stabilisation in the ATLAS TRT detector

Summary, in English

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.

• Author: B Mindur; T. P.A. Åkesson; F Anghinolfi; A Antonov; O Arslan; O K Baker; E Banas; C. Bault; A J Beddall; J. Bendotti; D P Benjamin; H Bertelsen; A Bingul; A Bocci; A. S. Boldyrev; I Brock; M. Capeáns Garrido; A Catinaccio; E. Celebi; S A Cetin; K. Choi; M Dam; H. Danielsson; D. S. Davis; C. Degeorge; D Derendarz; K. K. Desch; B Di Girolamo; F Dittus; N. Dixon; N Dressnandt; F. A. Dubinin; H Evans; P Farthouat; O L Fedin; D Froidevaux; I L Gavrilenko; C Gay; Z Gecse; J. J. Godlewski; C Grefe; S. Gurbuz; Z Hajduk; M Hance; B Haney; J. B. Hansen; P H Hansen; A. D. Hawkins; S. Heim; K. Holway; V A Kantserov; S. Katounine; F Kayumov; P T Keener; B. Kisielewski; N. V. Klopov; S. P. Konovalov; S Koperny; N. A. Korotkova; T Z Kowalski; V. Kramarenko; D Krasnopevtsev; M. Kruse; L. G. Kudin; P Lichard; A Loginov; N Lorenzo Martinez; A Lucotte; F Luehring; E. Lytken; V P Maleev; A. S. Maevskiy; J Manjarres Ramos; R. Y. Mashinistov; C Meyer; V Mialkovski; K P Mistry; V A Mitsou; A. V. Nadtochi; F M Newcomer; E. G. Novodvorski; H Ogren; S H Oh; S. B. Oleshko; J Olszowska; W. Ostrowicz; G. Palacino; S. Patrichev; J. Penwell; F. Perez-Gomez; V. D. Peshekhonov; O. Røhne; M. B. Reilly; C Rembser; O Ricken; A Romaniouk; D Rousseau; V Ryjov; U. Sasmaz; S. Schaepe; V. A. Schegelsky; A. P. Shmeleva; E. Shulga; S. Sivoklokov; S Smirnov; Y. U. Smirnov; L. N. Smirnova; E. Soldatov; V. V. Sulin; G. Tartarelli; W. Taylor; E. Thomson; V. O. Tikhomirov; P. Tipton; J. A. Valls Ferrer; R. Berg; J. Vasquez; L. F. Vasilyeva; O. Vlazlo; B. Weinert; H H Williams; Victor W. Wong; K. I. Zhukov; D. Zieminska
• Department/s: Particle and nuclear physics
• Publishing year: 2016-04-29
• Language: English
• Publication/Series: Journal of Instrumentation
• Volume: 11
• Issue: 4
• Links: http://dx.doi.org/10.1088/1748-0221/11/04/P04027
• Document type: Journal article
• Publisher: IOP Publishing
• Topic: Subatomic Physics
• Keywords: Drift chambers; Drift tubes; Gaseous detectors; Particle tracking detectors (Gaseous detectors); Proportional chambers etc; Thin-gap chambers; Transition radiation detectors; Wire chambers MWPC
• Status: Published
• ISBN/ISSN/Other: ISSN: 1748-0221