2019 Volume 127 Issue 7 Pages 455-461
We prepared glass samples with a chemical composition of 30KPO3–70Al(PO3)3 by the melt quenching method. As a radio-photoluminescence (RPL) emission center, Ag2O (0, 0.1, 0.3, 1.0 and 3.0%) was doped in these glasses. Before X-ray irradiation, Ag-doped samples showed a blue luminescence upon 254 nm excitation while they exhibited an orangish luminescence upon 304 nm excitation after X-ray irradiation. We evaluated dosimeter properties such as dose response properties of RPL, fading and thermally stimulated luminescence (TSL) glow curves. Dose response function in RPL emission indicated the lower detection limit of 100 mGy. In addition, TSL glow curve of Ag-doped 30KPO3–70Al(PO3)3 showed that accumulated carriers in the samples were released at around 85°C and easily re-excited at room temperature.