Management and control of the read out processors (TPPs) of the Aleph time projection chamber

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

doi:10.1109/23.41083

Management and control of the read out processors (TPPs) of the Aleph time projection chamber

S R Amendolia , W Blum + Show 45 more

https://doi.org/10.1109/23.41083

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Journal: IRE Transactions on Nuclear Science	Publication Date: Oct 1, 1989
Citations: 2

Affiliation: Scuola Normale Superiore, Max Planck Institute for Astrophysics, Max Planck Institute for Physics, European Organization for Nuclear Research, University of Wisconsin–Madison, Johannes Gutenberg University Mainz, INFN Sezione di Trieste, National Centre of Scientific Research "Demokritos", University of Glasgow, French National Centre for Scientific Research, École Polytechnique, Institut Polytechnique de Paris

#Time Projection Chamber #Exception Handling + Show 8 more

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Abstract

The readout of the Aleph time projection chamber (TPC) relies on a set of 72 time projection processors (TPPs), which are based on a Motorola 68020 microprocessor running a real-time operating system. The advanced processing capabilities of the TPPs allow them to perform in parallel a number of tasks, both during and outside of data acquisition, which are outlined. The management and control of such a large number of intelligent devices is presented. The discussion covers the hardware configuration of the TPPs; the software running the TPPs; their management, status, and control; exception handling and message logging; and the TPP monitoring tasks.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>

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