Discrimination between noise and gamma-background in scintillation neutron detectors containing ZnS(Ag)

The possibilities of isolating signals produced by neutrons against the background for intense ..gamma.. radiation in detectors containing ZnS(Ag) by selecting current pulses according to their duration at a fixed level are investigated. Using a simple identification system, the improvement in the effect-to-background ratio amounts to 1-2 orders of magnitude in comparison to that achieved for amplitude selection of the signals under conditions of high background intensity.