Introduction

We define a trigger an algorythm designed to search, identify and tag any interesting feature (e.g. a pulse) in the data flow of a single DAQ channel. Apollo supports the existence of several trigger algorythms running at the same time. The number of algorythms is in principle unlimited, although in the current implementation no more than 4 can be run at the same time in a given run. The trigger parameters can be tuned channel by channel.

The trigger algorythms are executed in DATAREADER .