Neutron Radiography Characteristics of Transfer Exposure Method Using X-ray Imaging Plate

Abstract

Indirect neutron radiography by transferring radiation from an activated metal foil to a film is an effective technique under a high gamma-ray field. By adopting an X-ray imaging plate (IP), the sensitivity characteristics of indirect neutron radiography were quantitatively evaluated through experiments using cyclotron accelerator neutrons. The wider dynamic range and higher sensitivity of the IP method than the conventional film method were shown through parametric tests of neutron flux, exposure time, and transfer time. It was confirmed that the X-ray IP-based transfer exposure method is a promising neutron radiography method under neutron/gamma mixed fields.