D. Alexandreas et al., THE CLUE TRIGGER - A VME BASED 2-LEVEL TRIGGER FOR VHE EXPERIMENTS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 409(1-3), 1998, pp. 679-681
We describe a trigger architecture developed for shower selection in t
he CLUE Cherenkov telescopes. The selection is made first in each tele
scope of the array looking at the low resolution images produced by fa
st electronics, than requiring temporal coincidence between units. Big
effort has been put to simplify the programming of trigger configurat
ions to help the user to switch easily between different observational
and calibration requests. (C) 1998 Published by Elsevier Science B.V.
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