[19p-Z12-1~15] 2.6 Radiation-induced phosphors

[19p-Z12-13] Radiophotoluminescence behavior in Cu-doped aluminosilicate glass

〇Yusaku Nishi¹, Atsushi Kinomura², Arifumi Okada¹, Takashi Wakasugi¹, Kohei Kadono¹ (1.Kyoto Inst. Tech., 2.KURNS)

Keywords:RPL, oxide glass, copper

Exposure of glasses to ionizing radiation generates electron-hole pairs in the glasses. Some of them are captured by the metal ions existing in the glass, and new luminescent species are generated. The luminescence emitted by the species is called radiophotoluminescence (RPL). Previously, we reported optimal glass composition for clear RPL in aluminoborosilicate glass containing a very small amount of Cu. In this study, we report the radiation dependence and effect of heat treatment on the RPL behaviors. It was found that the RPL intensity increased proportionally up to around 300 Gy. Furthermore, the RPL intensity increased even at 10 Gy or less.