Title :
The CLEO-III trigger: axial and stereo tracking
Author :
Bergfeld, T.J. ; Ernst, J.A. ; Gollin, G.D. ; Haney, M.J. ; Hans, R.M. ; Johnson, E.E. ; Plager, C.L. ; Sedlack, C.M. ; Selen, M.A. ; Williams, J.B.
Author_Institution :
Dept. of Phys., Illinois Univ., Urbana, IL, USA
Abstract :
The tracking subsystem of the CLEO-III Trigger consists of separate axial and stereo tracking pattern-matching modules, whose products are time-aligned and spatially correlated to provide pipelined trigger information every 42 ns with a latency of approximately 2 ns. This paper describes the pipelined signal processing and pattern recognition schemes used by the axial and stereo electronics to provide the information necessary to make trigger decisions. Extensive use of in-system field programmable gate arrays support path finding and timing information extraction
Keywords :
drift chambers; field programmable gate arrays; nuclear electronics; particle calorimetry; pattern matching; signal processing; trigger circuits; CLEO-III trigger; axial tracking; in-system field programmable gate arrays; pattern recognition schemes; pattern-matching modules; pipelined signal processing; pipelined trigger information; stereo tracking; timing information extraction; tracking subsystem; trigger decisions; Array signal processing; Calorimetry; Circuit topology; Data acquisition; Data mining; Delay; Detectors; Pattern recognition; Physics; Timing;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949933
