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