A fast track trigger processor for the OPAL experiment at LEP, CERN
| Autor: | R. Hammarstrom, A. Penton, D. Joos, S. Jaroslawski, M. Bramhall, C. Weber |
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| Rok vydání: | 1989 |
| Předmět: |
Physics
Nuclear and High Energy Physics Large Hadron Collider business.industry Electrical engineering Topology (electrical circuits) Particle accelerator Coincidence Plane (Unicode) Computational science law.invention Nuclear Energy and Engineering Pulse circuits law Electrical and Electronic Engineering business Beam (structure) Electronic circuit |
| Zdroj: | IEEE Transactions on Nuclear Science. 36:380-383 |
| ISSN: | 1558-1578 0018-9499 |
| Popis: | The authors present the operational features and an engineering overview of criteria used in designing and building the fast track trigger processor for the OPAL experiment. The function of the processor is to examine, between successive LEP beam crossings (22 mu m), the multihit data generated by two central drift chambers and to provide the OPAL first-level trigger with information about the topology and the multiplicity of good tracks. The classes of events looked for are in the form of straight tracks in the R-Z plane which originate in the interaction region. The tracks are found in the R-Z and the R- phi planes by 24 fast track-finder circuits operating in parallel using a novel histogramming technique. A semicustom coincidence array circuit is used to match tracks. > |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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