Aging studies for the ATLAS Transition Radiation Tracker (TRT)

Torsten Åkesson, E Barberio, V Bondarenko, M Capeans, A Catinaccio, P Cwetanski, H Danielsson, F Dittus, B Dolgoshein, N Dressnandt, WL Ebenstein, Paula Eerola, P Farthouat, O Fedin, D Froidevaux, I Gavrilenko, Y Grichkevitch, P Gagnon, Z Hajduk, PT KeenerG Kekelidze, S Konovalov, T Kowalski, VA Kramarenko, A Laritchev, P Lichard, Björn Lundberg, F Luehring, I Markina, A Manara, K Mcfarlane, V Mitsou, S Muraviev, FM Newcomer, H Ogren, SH Oh, J Olszowska, V Peshekhonov, C Rembser, A Romaniouk, O Rhone, DR Rust, V Schegelsky, A Shmeleva, S Smirnov, LN Smirnova, V Sosnovtsev, S Sutchkov, F Tartarelli, V Tikhomirov, R Van Berg, L Vassilieva, C Wang, HH Williams

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

A summary of the aging and material validation studies carried out for the ATLAS Transition Radiation Tracker (TRT) is presented. Particular emphasis is put on the different phenomena observed in straw tubes operating with the chosen Xe/CF4/CO2 mixture. The most serious effects observed are silicon deposition on the anode wire and damage of the anode wire gold plating. Etching phenomena and active radical effects are also discussed. With a careful choice of all materials and components, and with good control of the water contamination in the active gas, the ATLAS TRT will operate reliably for 10 years at the LHC design luminosity. To demonstrate this fully, more work is still needed on the gas system purification elements, in particular to understand their interplay with the active species containing fluorine created in the avalanche process under irradiation.
Original languageEnglish
Title of host publicationNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
PublisherElsevier
Pages166-179
Volume515
DOIs
Publication statusPublished - 2003
EventInternational Workshop on Aging Phenomena in Gaseous Detectors - Hamburg, Germany
Duration: 2001 Oct 22001 Oct 5

Publication series

Name
Number1-2
Volume515
ISSN (Print)0168-9002

Conference

ConferenceInternational Workshop on Aging Phenomena in Gaseous Detectors
Country/TerritoryGermany
CityHamburg
Period2001/10/022001/10/05

Subject classification (UKÄ)

  • Accelerator Physics and Instrumentation

Free keywords

  • CF4
  • proportional chamber
  • TRT
  • etching
  • straw
  • aging
  • gold damage

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