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Characteristics of a SrBPO$$_{5}$$:Eu$$^{2+}$$ material as a neutron storage phosphor

Sakasai, Kaoru  ; Katagiri, Masaki; To, Kentaro; Takahashi, Hiroyuki*; Nakazawa, Masaharu*; Kondo, Yasuhiro*

Characteristics of a SrBPO$$_{5}$$:Eu$$^{2+}$$ 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$$^{-0.5}$$, where E is neutron energy. The S$$_{gamma}$$/S$$_{n}$$ ratio of the phosphor using enriched boron was better than that of a commercially available imaging plate, where S$$_{gamma}$$/ and S$$_{n}$$ 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.

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