DVCS Calorimeter Trigger System Overview
¥DVCS Calorimeter Trigger System must search for the
clusters produced by photons; normally presence of at least two clusters will be
required, although one-cluster or three-cluster trigger must be
possible as well
¥Cluster is defined as more
then N towers (N<=9) with energy deposition above threshold located within 3x3 towers rectangular area (figure on
following slide)
¥We assume that CAEN v895B
discriminators and v1495 logic unit will be used, although custom logic unit may be
designed if necessary
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