D0 triggering and data acquisition
The trigger for D0 is a multi-tier system. Within the 3.5 [mu]sec bunch crossing interval, custom electronics select interesting event candidates based on electromagnetic and hadronic energy deposits in the calorimeter and on indications of tracks in the muon system. Subsequent hardware decisions use refined calculations of electron and muon characteristics. The highest level trigger occurs in one element of a farm of microprocessors, where fully developed algorithms for electrons, muons, jets, or missing E[sub t] are executed. This highest level trigger also provides the assembly of the event into its final data structure. Performance of this trigger and data acquisition system in collider operation is described.
- Research Organization:
- Fermi National Accelerator Lab., Batavia, IL (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03000; AC02-76CH00016
- OSTI ID:
- 6902092
- Report Number(s):
- FNAL/C-92/303; CONF-920837--31; BNL--48147; ON: DE93004743
- Country of Publication:
- United States
- Language:
- English
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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALGORITHMS
ARRAY PROCESSORS
CHARGED PARTICLE DETECTION
DATA ACQUISITION SYSTEMS
DETECTION
ELECTRONIC CIRCUITS
FERMILAB COLLIDER DETECTOR
MATHEMATICAL LOGIC
MEASURING INSTRUMENTS
MUON DETECTION
PERFORMANCE
PULSE CIRCUITS
RADIATION DETECTION
RADIATION DETECTORS
SHOWER COUNTERS
TRIGGER CIRCUITS