Development of a fast, thermal neutron, and gamma ray component discriminator

A fast neutron, thermal neutron, and gamma ray component (FTG) discriminator is proposed in this study. The FTG discriminator was tested using neutron beams generated from the YAYOI fast neutron reactor and the Kyoto University Research Reactor. Various beams were successfully discriminated into fast, thermal, cold neutrons and gamma rays. The measurement technique and the reliability of the FTG discriminator are discussed.