Engineering for the ATLAS SemiConductor Tracker (SCT) End-cap

A Abdesselam ,C G Lester ,Juan Nácher ,M W Wolter ,S González-Sevilla ,H Becker ,M Karagoz-Unel ,E G Villani ,D F Howell ,D Ferguson ,G Kramberger ,Javier Civera ,G A Beck ,Ján Jusko ,L E Lindquist ,Z J Blaszczak ,K Runge ,M Turała ,R Duxfield ,M Sowiński ,T I Hollins ,P Jovanović ,P Coe ,J R Pater ,R Apsimon ,G N Taylor ,D Ferrère ,J Morin ,A Hicheur ,A J.m Muijs ,B Munneke ,S Martí-García ,Bernardo Gómez Moreno ,J R Batley ,J Dalmau ,A Gorišek ,Y Ikegami ,A R Stradling ,V R Lacuesta ,S Roe ,E Koffeman ,L Haddad ,C Carpentieri ,M Solar ,J Große-Knetter ,J Matheson ,C M Buttar ,J Godlewski ,J Šťastný ,Michael Harris ,H F-W Sadrozinski ,J Slatter ,T Vu Anh ,G F Moorhead ,N P Hessey ,K M Smith ,A Sfyrla ,E Górnicki ,C Ketterer ,M Wachler ,J Kapłon ,F Gannaway ,H Fox ,D Fasching ,A Mitra ,R Szczygieł ,J.p Bizzell ,P J Bell ,T.j Fraser ,J Tarrant ,J C Hill ,D Costanzo ,S Eckert ,A J Barr ,M Palmer ,A Chilingarov ,I P Duerdoth ,A Macpherson ,P Johansson ,Cyrill Locket ,V Král ,J Homna J Homna,P Ford ,F Hartjes ,C Lacasta ,R Nisius ,Murray Gibson ,S Moêd ,Mike Lockwood ,Otto Jusko ,P Ferrari ,A A Grillo ,R L Bates ,M J Costa ,F Anghinolfi ,M Ibbotson ,V O’shea ,B Mohn ,J Noviss J Noviss,R C Jared ,G Burton ,P De Jong ,C Macwaters ,H Sandaker ,M Van Ovenbeek M Van Ovenbeek,P W Phillips ,B Anderson ,H Spieler ,V Linhart ,A Greenall ,J Meinhardt ,P Cooke ,S Bethke ,N A Smith ,D Naito ,G H A Viehhauser ,J Böhm ,I Ilyashenko ,A F Saavedra ,S Pospı́šil ,W H Bell ,M L Chu ,A A Carter ,E Capocci ,S Chouridou ,P Beneš ,K P Mistry ,R Wallny ,J Freestone ,G Tratzl ,J Kudłaty ,M Curtis-Rous M Curtis-Rous,R Fortin R Fortin,W Lau ,S J Haywood ,Z Liang ,V Vacek ,R B Nickerson ,P K Teng ,A Korporaal ,J Błocki ,J Beneš ,J Jakůbek ,P Jarron ,A Cheplakov ,S D Gregory ,E Berbee ,Silvana Mima ,B Stugu ,S W Lindsay ,M C Hodgkinson ,E Stanecka ,R Buis ,R Tanaka ,Francisca Javiela Muñoz Sánchez ,C Duisters C Duisters,K Nagai ,A Seiden ,D Joos ,C Vu ,D Robinson ,R J Thompson ,B J Gallop ,V Koukol ,Corijn Snippe ,J A Wilson ,V Strachko V Strachko,A Belymam ,P Sutcliffe ,T Vickey ,S L Wu ,Z Doležal ,P Dervan ,L Felď ,K Gnanvo ,Jan Brož ,C P Ward ,K Jakobs ,M Chamizo ,Colin Dabinett ,Ç İşsever ,C Escobar ,T P Jones ,P Werneke ,B M Hawes ,P N Ratoff ,C A Heusch ,S Koperny ,M Donegà ,J Joseph ,S Terada ,C Raine ,D Macina ,J Rövenkamp ,L Andricek ,Sebastian Lenz ,P Modesto ,Florian Heinemann ,Francisco M González ,Paul E Barclay ,J R Carter ,T Atkinson ,E Spencer ,F Doherty ,M D’onofrio ,D John ,R Holt ,B Mellado ,W J Murray ,T Slavíéek ,K Poltorak ,F Mcewan ,P Wetzel ,X Wu ,D Hauff ,A R Weidberg ,M Ullán ,John P Zimmer ,R Takashima ,J Jackson ,R Rodriguez-Oliete ,V Cindro ,T Kohriki ,N Bingefors ,O Dorholt ,R Wastie ,I Messmer ,P Hodgson ,M Titov ,C A Magrath ,M Jones ,T Kondo ,M J White ,G F Martinez‐Mckinney ,J.m Butterworth ,R Leguyt ,S Butterworth S Butterworth,J Siegrist ,E Paganis ,D Greenfield ,M Warren ,T W Pritchard ,Bryan Smith ,S J Mcmahon ,W C Kuilman ,A Robichaud-Véronneau ,L E Batchelor L E Batchelor,P.r Turner ,I Šteckl ,P Weilhammer ,Y Unno ,N Kundu ,Arne Solberg ,H Kok ,M Postranecky ,M Stodulski ,M Lozano ,K Hara ,I Mandić ,A Jones ,J Fuster ,V Sopko ,A W Phillips ,V Fadeyev ,S D’auria ,M Doubrava ,G Lütz ,P A Bruckman De Renstrom ,Ian Wilmut ,O K Øye ,P P Allport ,A Tricoli ,I Dawson ,A P Colijn ,Richard French ,M Limper ,C Gryska ,Z Kohout ,M Mikuž ,L Sospedra ,B Sopko ,L Eklund ,J H Vossebeld ,T Hayler ,D G Charlton ,J Schieck ,J E Garcíanavarro ,G Southern ,B Mikulec ,J Ludwig ,J Bernabéu ,Marcus M Maassen ,C Garćıa ,Stephen C Temple ,H Pernegger ,G Gorfine ,A Reitmeijer A Reitmeijer,U Parzefall ,A Moszczyński ,W Dąbrowski ,E Dobson ,P Řezníček ,A Robson ,K J C Leney ,A Lintern ,H G Moser ,M Wiesmann ,F K Loebinger ,G Hughes ,S Stapnes ,George C Marshall ,E Van Der Kraaij ,C Nelson ,E Perrin ,V A Mitsou ,R Moles R Moles,D.j Mcphail ,J P Pieron ,M J Goodrick ,A Žsenei ,R Richter ,M Weber ,K.m Danielsen ,I Ludwig ,T Horažiovský ,S M Gibson ,T J Brodbeck ,T Huse ,A Everett Austin ,P Kubík ,D R Tovey ,K Liebicher ,J.j.f Buskop ,G Rolfe G Rolfe,M Dwužnik ,D Chren ,Martin Galuska ,A Ciocio ,M Wormald ,M A Parker ,J Fopma ,A Clark ,N E Thresher N E Thresher,D Evans ,I Mercer ,P S Wells ,K Prokofiev ,S C Lee ,R Brenner ,D Muskett ,H Schuijlenburg ,I Nakano ,J D Morris ,S W Snow ,M Olcese ,G Simm ,P Kodyš ,M Mangin-Brinet ,K Heinzinger ,J M Foster ,M Tyndel ,G P Tappern ,A Nichols ,Pa Malecki ,H Zhu

doi:10.1088/1748-0221/3/05/p05002

Abstract

The ATLAS SemiConductor Tracker (SCT) is a silicon-strip tracking detector which forms part of the ATLAS inner detector. The SCT is designed to track charged particles produced in proton-proton collisions at the Large Hadron Collider (LHC) at CERN at an energy of 14 TeV. The tracker is made up of a central barrel and two identical end-caps. The barrel contains 2112 silicon modules, while each end-cap contains 988 modules. The overall tracking performance depends not only on the intrinsic measurement precision of the modules but also on the characteristics of the whole assembly, in particular, the stability and the total material budget. This paper describes the engineering design and construction of the SCT end-caps, which are required to support mechanically the silicon modules, supply services to them and provide a suitable environment within the inner detector. Critical engineering choices are highlighted and innovative solutions are presented – these will be of interest to other builders of large-scale tracking detectors.The SCT end-caps will be fully connected at the start of 2008. Furthercommissioning will continue, to be ready for proton-proton collisiondata in 2008.

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