The plastic scintillator for n/γ-discrimination with alkyl-substituted PPO derivative.

Abstract

A new polystyrene-based plastic scintillator for pulse shape n/γ-discrimination is obtained by using alkyl-substituted PPO derivative as scintillation dopant. The microhardness and FOM of the new PS is measured. The microhardness is equal to 39 MPa, and FOM on 2 MeVee level is equal 2.12. Also it is established, the new PS has high long-term stability.