The FASTBUS readout system for the Aleph time projection chamber

S R Amendolia ,M Takashima,J Boudreau,F Fidecaro,J Conway,F Steeg,W Tejessy,D Schlatter,R Settles,W Witzeling,G Stefanini,J Richstein,I Lehraus,W Blum,A Lusiani,D Cinabro,J Wear,A Jahn,M Schmelling,T Barczewski,E Milotti,R Richter,B Gobbo,M Kasemann,E Blucher,A Vayaki,J May,A Minten,S Xue,S Roehn,B W Leclaire ,G Rolandi ,S L Wu ,D F Cowen ,R.p Johnson ,J P Thomas ,S J Haywood ,M E Convery ,L A T Bauerdick ,P S Marrocchesi ,M A Ciocci ,A.w Halley ,Ulf Larsson ,T Löhse ,R C Jared

doi:10.1109/23.41076

Abstract

The readout system for the Aleph central tracking detector, a large time projection chamber (TPC), consists of more than 100 FASTBUS crates with approximately 1000 FASTBUS modules. The detector and its associated electronics are briefly presented, followed by a more detailed description of the readout and control system. The discussion covers the sector readout, electronics calibration, front-end data acquisition, data pipelining, and service request handling. Experiences with the system are discussed. >

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