Characteristics of a SrBPO/sub 5/:Eu/sup 2+/ material as a neutron storage phosphor

Characteristics of a SrBPO/sub 5/:Eu/sup 2+/ material have been investigated as a neutron storage phosphor. The authors found this phosphor shows photostimulated luminescence by illumination with 635 nm laser light after neutron irradiation. The neutron sensitivity was proportional to E/sup -0.5/, where E is neutron energy. The S/sub /spl gamma///S/sub n/ ratio of the phosphor using enriched boron was better than that of a commercially available imaging plate, where S/sub /spl gamma// and S/sub n/ are the gamma and neutron sensitivities, respectively. A collimated neutron beam image was clearly obtained with the phosphor sample by scanning focused laser light on it.