A parallel pipelined dataflow trigger processor
- Northern Illinois Univ., De Kalb, IL (United States)
- Fermi National Accelerator Lab., Batavia, IL (United States)
- Los Alamos National Lab., NM (United States)
This paper describes a parallel pipelined data flow trigger processor which is used in Fermilab E789. E789 is an experiment to study low-multiplicity decays of particles containing b or c quarks. The processor consists of an upstream vertex processor and a downstream track processor. The algorithms which reconstruct the postulated particle paths and calculate particle origin are implemented via interconnected function-specific hardware modules. The algorithm is directly dependent upon the organization of the modules, the specific arrangement of the inter-module cabling, on-board memory data. The processor provides an indication of the presence of at least one interesting particle pair in the current event by asserting Read on its Read/Skip output. The Read assertion is then used as a trigger to capture all of the event's data for subsequent extensive off-line analysis.
- OSTI ID:
- 5090300
- Journal Information:
- IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 38:2; ISSN 0018-9499
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
FERMILAB ACCELERATOR
PARALLEL PROCESSING
PARTICLE DECAY
ALGORITHMS
DATA-FLOW PROCESSING
PARTICLE TRACKS
TRIGGER CIRCUITS
ACCELERATORS
CYCLIC ACCELERATORS
DECAY
ELECTRONIC CIRCUITS
MATHEMATICAL LOGIC
PROGRAMMING
PULSE CIRCUITS
SYNCHROTRONS
440104* - Radiation Instrumentation- High Energy Physics Instrumentation
990200 - Mathematics & Computers