D0 triggering and data acquisition

Conference · Thu Oct 01 04:00:00 EDT 1992

OSTI ID:10114588

Gibbard, B

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: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH03000; AC02-76CH00016
• OSTI ID: 10114588
• Report Number(s): FNAL/C--92/303; CONF-920837--31; BNL--48147; ON: DE93004743
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303
440104
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALGORITHMS
ARRAY PROCESSORS
DATA ACQUISITION SYSTEMS
EXPERIMENTAL FACILITIES AND EQUIPMENT
FERMILAB COLLIDER DETECTOR
HIGH ENERGY PHYSICS INSTRUMENTATION
MUON DETECTION
PERFORMANCE
SHOWER COUNTERS
TRIGGER CIRCUITS