The D0 level 1.5 calorimeter trigger

Conference · Fri Dec 30 23:00:00 EST 1994

OSTI ID:54015

Linnemann, J T ^[1]

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1. Michigan State Univ., East Lansing, MI (United States)

The authors present a trigger based on commercial DSP`s currently being installed in the D0 experiment. The D0 trigger consists of a deadtimeless hardware phase (Level 1) which selects events for digitization, and a software phase (Level 2) using a processor farm. One of the scarcest resources in D0 triggering is the bandwidth into Level 2. Level 1.5 is an intermediate hardware trigger level designed to improve the quality of events chosen for digitization. Level 1.5 makes decisions in 10-200 {mu}sec, but incurs deadtime while waiting for the decision.

• Research Organization: Lawrence Berkeley Lab., CA (United States)
• OSTI ID: 54015
• Report Number(s): LBL--35822; CONF-940492--; ON: DE95004442
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
99 GENERAL AND MISCELLANEOUS
DESIGN
FERMILAB
RADIATION DETECTORS
SHOWER COUNTERS
TRIGGER CIRCUITS