Fast neutron radiography system

摘要

A system for gamma-ray interference-free fast-neutron radiography is provided. The system comprises a radiation detector adapted to distinguish between neutron and gamma radiation, an imaging device transducing object-point related signals generated by the object-modified neutron and gamma radiation in the radiation detector. The system also includes a pulse-shaped discrimination and gating device for passing only neutron-induced image-producing pulses so as to filter out the gamma-ray induced, interfering signals.