NIM Module for installation in 5580A/B NIM PSU/rack

Coincidence detection systems, required in many nuclear experiments, separate for counting only those events which meet selected timing criteria. Anticoincidence detection suppresses the counting of events, such as cosmic rays, that generate pulses coincidentally in a guard detector and the primary detector.

The 5585A Fast Coincidence Detector has three switch-selectable inputs for coincidence detection, one switch-selectable input for anticoincidence detection. Selected resolving time for coincidence can be as short as 1 nsec, three times shorter than that of any other coincidence detector.

First mentioned in HP Measurement News May/June 1969