The ATLAS TRT Barrel Detector

The ATLAS TRT collaboration,E Abat,T N Addy,T P A Åkesson,J Alison,F Anghinolfi,E Arik,M Arik,G Atoian,B Auerbach,O K Baker,E Banas,S Baron,C Bault,N Becerici,A Beddall,A J Beddall,J Bendotti,D P Benjamin,H Bertelsen,A Bingul,H Blampey,A Bocci,M Bochenek,V G Bondarenko,V Bychkov,J Callahan,M Capeáns Garrido,L Cardiel Sas,A Catinaccio,S A Cetin,T Chandler,R Chritin,P Cwetanski,M Dam,H Danielsson,E Danilevich,E David,J Degenhardt,B Di Girolamo,F Dittus,N Dixon,O B Dogan,B A Dolgoshein,N Dressnandt,C Driouchi,W L Ebenstein,P Eerola,U Egede,K Egorov,H Evans, P Farthouat,O L Fedin,A J Fowler,S Fratina,D Froidevaux,A Fry,P Gagnon,I L Gavrilenko,C Gay,N Ghodbane,J Godlewski,M Goulette,I Gousakov,N Grigalashvili,Y Grishkevich,J Grognuz,Z Hajduk,M Hance,F Hansen,J B Hansen,P H Hansen,G Hanson,G A Hare,A Harvey,C Hauviller,A High,W Hulsbergen,W Huta,V Issakov,S Istin,V Jain,G Jarlskog,L Jeanty,V A Kantserov,B Kaplan,A S Kapliy, S Katounine,F Kayumov,P T Keener,G D Kekelidze,E Khabarova,A Khristachev,B Kisielewski,T H Kittelmann,C Kline,E B Klinkby,N V Klopov,B R Ko,T Koffas,N V Kondratieva,S P Konovalov,S Koperny,H Korsmo,S Kovalenko,T Z Kowalski,K Krüger,V Kramarenko,L G Kudin,A-C Le Bihan,B C LeGeyt,K Levterov,P Lichard,A Lindahl,V Lisan,S Lobastov,A Loginov,C W Loh,S Lokwitz,M C Long,S Lucas,A Lucotte,F Luehring,B Lundberg,R Mackeprang,V P Maleev,A Manara,M Mandl,A J Martin,F F Martin,R Mashinistov,G M Mayers,K W McFarlane,V Mialkovski,B M Mills,B Mindur,V A Mitsou,J U Mjörnmark,S V Morozov,E Morris,S V Mouraviev,A M Muir,A Munar,A V Nadtochi,S Y Nesterov,F M Newcomer,N Nikitin,O Novgorodova,E G Novodvorski,H Ogren,S H Oh,S B Oleshko,D Olivito,J Olszowska,W Ostrowicz,M S Passmore,S Patrichev,J Penwell,F Perez-Gomez,V D Peshekhonov,T C Petersen,R Petti,A Placci,A Poblaguev,X Pons,M J Price,O Rø hne,R D Reece,M B Reilly,C Rembser,A Romaniouk,D Rousseau,D Rust,Y F Ryabov,V Ryjov,M Söderberg,A Savenkov,J Saxon,M Scandurra, V A Schegelsky,M I Scherzer,M P Schmidt,C Schmitt,E Sedykh,D M Seliverstov,T Shin,A Shmeleva,S Sivoklokov,S Yu Smirnov,L Smirnova,O Smirnova,P Smith,V V Sosnovtsev,G Sprachmann,S Subramania,S I Suchkov,V V Sulin,R R Szczygiel,G Tartarelli,E Thomson,V O Tikhomirov,P Tipton,J A Valls Ferrer,R Van Berg,V I Vassilakopoulos,L Vassilieva,P Wagner,R Wall,C Wang,D Whittington,H H Williams,A Zhelezko,K Zhukov

JOURNAL OF INSTRUMENTATION（2008）

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Abstract

The ATLAS TRT barrel is a tracking drift chamber using 52,544 individual tubular drift tubes. It is one part of the ATLAS Inner Detector, which consists of three sub-systems: the pixel detector spanning the radius range 4 to 20 cm, the semiconductor tracker (SCT) from 30 to 52 cm, and the transition radiation tracker ( TRT) from 56 to 108 cm. The TRT barrel covers the central pseudo-rapidity region |eta| < 1, while the TRT endcaps cover the forward and backward eta regions. These TRT systems provide a combination of continuous tracking with many measurements in individual drift tubes ( or straws) and of electron identification based on transition radiation from fibers or foils interleaved between the straws themselves. This paper describes the recently-completed construction of the TRT Barrel detector, including the quality control procedures used in the fabrication of the detector.

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Key words

particle tracking detectors,large detector systems for particle and astroparticle physics,transition radiation detectors,particle identification methods

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