Abstract Radio-photoluminescence (RPL) phenomenon was observed in CaF2 transparent and opaque ceramics by X-ray irradiation. The RPL appeared as a formation of photoluminescence (PL) emission bands located around 660 and 720 nm caused by F2+ and (F2+)A centers, respectively. The RPL signal can be deleted by heating, and reusability was observed over ten experimental cycles. The fading of the RPL signal was confirmed to be ~4% in 10 days. The detectable RPL response of CaF2 transparent ceramics was as low as 1 mGy, and the dynamic ranges were confirmed over 1–10000 mGy with linear response.

中文翻译：

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CaF2 透明和不透明陶瓷的辐射光致发光特性

摘要 通过X射线照射在CaF2透明和不透明陶瓷中观察到了辐射光致发光(RPL)现象。RPL 表现为分别由 F2+ 和 (F2+)A 中心引起的位于 660 和 720 nm 附近的光致发光 (PL) 发射带的形成。RPL 信号可以通过加热删除，并且在十个实验周期内观察到可重复使用性。确认 RPL 信号在 10 天内衰减约 4%。CaF2 透明陶瓷的可检测 RPL 响应低至 1 mGy，动态范围在 1-10000 mGy 范围内被确认为线性响应。