Aging studies for the ATLAS Transition Radiation Tracker (TRT)
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Aging studies for the ATLAS Transition Radiation Tracker (TRT)

T. Akesson,E. Barberio,V. Bondarenko,M. Capeans,A. Catinaccio,P. Cwetanski,H. Danielsson,F. Dittus,B. Dolgoshein,N. Dressnandt,W.L. Ebenstein,P. Eerola,P. Farthouat,O. Fedin,D. Froidevaux,I. Gavrilenko,Y. Grichkevitch,P. Gagnon,Z. Hajduk,P.T. Keener,G. Kekelidze,S. Konovalov,T. Kowalski,V.A. Kramarenko,A. Laritchev,P. Lichard,B. Lundberg,F. Luehring,I. Markina,A. Manara,K. McFarlane,V. Mitsou,S. Muraviev,F.M. Newcomer,H. Ogren,S.H. Oh,J. Olszowska,V. Peshekhonov,C. Rembser,A. Romaniouk,O. Rhone,D.R. Rust,V. Schegelsky,A. Shmeleva,S. Smirnov,L.N. Smirnova,V. Sosnovtsev,S. Sutchkov,F. Tartarelli,V. Tikhomirov,R. Van Berg,L. Vassilieva,C. Wang,H.H. Williams;T. Akesson;E. Barberio;V. Bondarenko;M. Capeans;A. Catinaccio;P. Cwetanski;H. Danielsson;F. Dittus;B. Dolgoshein;N. Dressnandt;W.L. Ebenstein;P. Eerola;P. Farthouat;O. Fedin;D. Froidevaux;I. Gavrilenko;Y. Grichkevitch;P. Gagnon;Z. Hajduk;P.T. Keener;G. Kekelidze;S. Konovalov;T. Kowalski;V.A. Kramarenko;A. Laritchev;P. Lichard;B. Lundberg;F. Luehring;I. Markina;A. Manara;K. McFarlane;V. Mitsou;S. Muraviev;F.M. Newcomer;H. Ogren;S.H. Oh;J. Olszowska;V. Peshekhonov;C. Rembser;A. Romaniouk;O. Rhone;D.R. Rust;V. Schegelsky;A. Shmeleva;S. Smirnov;L.N. Smirnova;V. Sosnovtsev;S. Sutchkov;F. Tartarelli;V. Tikhomirov;R. Van Berg;L. Vassilieva;C. Wang;H.H. Williams;
nuclear instruments and methods in physics research section a: accelerators, spectrometers, detectors and associated equipment 2003 Vol. 515 pp. 166-179
152
williams2003nuclearaging

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.

Keywords

aging etching straw trt proportional chamber gold damage cf4

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DOI:
10.1016/j.nima.2003.08.145
URL:
https://sciprofiles.com/publication/view/c2c896f0a...

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ID: 261417
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