Electronic trigger for the ASP experiment

Author: Wilson, R. J.
Published: United States : [publisher not identified], 1985
Springfield, Va.: National Technical Information Service, [approximately 1985]
Physical Description: microfiche : negative ; 11 x 15 cm

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Summary

The Anomalous Single Photon (ASP) electronic trigger is described. The experiments is based on an electromagnetic calorimeter composed of arrays of lead glass blocks, read out with photo-multiplier tubes, surrounding the interaction point at the PEP storage ring. The primary requirement of the trigger system is to be sensitive to low energy (approx. =0.5 GeV and above) photons whilst discriminating against high backgrounds at PEP. Analogue summing of the PMT signals and a sequence of programmable digital look-up tables produces a ''dead-timeless'' trigger for the beam collision rate of 408 kHz. 6 refs., 6 figs.

Report Numbers

DE86007029; SLAC-PUB-3838; CONF-8511150-7

Other Subject(s)

Collection

NTIS collection.

Note

DOE contract number: AC03-76SF00515
OSTI Identifier 6076984
Research organization: Stanford Linear Accelerator Center, Menlo Park, CA (USA).

View MARC record | catkey: 47362321

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Electronic trigger for the ASP experiment

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