Pulse shape discrimination in inorganic and organic scintillators. I

Abstract The zero crossing technique of pulse shape discrimination (P.S.D.) has been employed to study the P.S.D. properties of a wide range of organic and inorganic scintillators. A figure of merit for P.S.D. has been defined and the relation between the figure of merit and particle rejection ratios is indicated. Results are presented which indicate the effect of dynamic range on discrimination. The excellent P.S.D. properties of CsI(Na) are also discussed.