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The read-out processors of the Aleph time projection chamber and their performance

Conference · · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA)
OSTI ID:6587095
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  1. CERN, Geneva (CH)
  2. Nuclear Research Center Demokritos, Athens (GR)
  3. Glasgow Univ. (UK)
  4. Institut fur Physik, J. Gutenberg Univ. Mainz (DE)
  5. Max-Planck-Institut fuer Physik und Astrophysik, Muenchen (Germany, F.R.)
  6. Dept de Fisica, INFN Sezione di Pisa, Scuola Normale Superiore, Pisa (IT)
  7. Institute di Fisica e Sezione INFN, Trieste (IT)
The Aleph detector is installed on the LEP electron-positron storage ring. Its central tracking detector, a time projection chamber, has about 50,000 channels of sampling electronics. The digitized signals are processed by 72 double width Fastbus modules, built around an MC 68020 processor. The time projection processor is described and the solutions, both hardware and software, adopted to run and manage such a complex system in a Fastbus-VAX environment are discussed. Practical experience with the system is reported.
OSTI ID:
6587095
Report Number(s):
CONF-900143--
Conference Information:
Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA) Journal Volume: 37:3
Country of Publication:
United States
Language:
English