Novel Fast Neutron Detectors for Environmental and Security Applications

Two new types of organic scintillation materials for spectrometry of fast neutrons are studied. Firstly, it is stilbene polycrystalline scintillators obtained by the technology of cold- and hot-pressing and organic. Secondly, it is composite scintillators based on grains of a stilbene single crystal introduced into an optically transparent organosilicone matrix. The influence of a grain size, a chosen type and concentration of grains in a polymer matrix on the scintillation characteristics of proposed materials are discussed.