New Technique for Separating Simultaneously Produced Scintillation and Cerenkov Radiation

Abstract

A fast electronic circuit for separating simultaneously produced scintillation and cerenkov radiations is described. In the design of the circuit, use is made of the fact that the decay time of the pulse of scintillation radiation produced in the plastic scintillator is longer than that of the cerenkov radiation emitted in the radiator or the light guide of a scintillator detector. Different decay times of the two pulse lead to different slopes of their respective trailing edges. The circuit selects one of these pulse by slope comparison and provides an output whenever the selected pulse is present in the radiator.