Evaluation of dosimetric properties of Tb-doped MgF2 transparent ceramics
Evaluation of dosimetric properties of Tb-doped MgF2 transparent ceramics
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DOI：
10.1016/j.ijleo.2019.163965
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发表时间：
2020-01
期刊：
影响因子：
3.1
通讯作者：
Tatsuya Matsuo;Takumi Kato;H. Kimura;Fumiya Nakamura;D. Nakauchi;N. Kawaguchi;T. Yanagida
中科院分区：
文献类型：
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作者：
Tatsuya Matsuo;Takumi Kato;H. Kimura;Fumiya Nakamura;D. Nakauchi;N. Kawaguchi;T. Yanagida
采用放电等离子烧结法制备了Tb掺杂的MgF2透明陶瓷，并对其光学、闪烁和剂量学性能进行了测试。在光致发光(PL)、闪烁发光(OSL)、光激发发光(OSL)和热刺激发光(TSL)中都观察到了Tb3+离子的4f-4f跃迁峰。其中，掺杂1%和3%Tb的氟化镁的TSL强度是掺杂0.01%Tb的氟化镁的120倍。此外，我们还证实了1%和3%Tb掺杂样品的TSL响应对辐照剂量非常敏感，并且在0.01-1000mGy线性关系良好。
We prepared Tb-doped MgF2transparent ceramics by the spark plasma sintering method and then measured optical, scintillation and dosimetric properties. We observed sharp peaks due to 4f-4f transition of Tb3+ion in all of photoluminescence (PL), scintillation, optically-stimulated luminescence (OSL) and thermally-stimulated luminescence (TSL). Especially, the 1 and 3 % Tb-doped MgF2exhibited 120 times laeger TSL intensity as compared to the 0.01 % Tb-doped MgF2. In addition, we confirmed the TSL response of the 1 and 3 % Tb-doped samples was very sensitive to irradiation dose and showed a good linearity from 0.01–1000 mGy.