Optical, scintillation, and dosimetric properties of undoped and Tb-doped CaYAlO4 single crystals
Optical, scintillation, and dosimetric properties of undoped and Tb-doped CaYAlO4 single crystals
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DOI：
10.1016/j.optmat.2022.113068
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发表时间：
2022-12
影响因子：
3.9
通讯作者：
Zuiko Aoki;Y. Takebuchi;D. Nakauchi;Takumi Kato;N. Kawaguchi;T. Yanagida
中科院分区：
文献类型：
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作者：
Zuiko Aoki;Y. Takebuchi;D. Nakauchi;Takumi Kato;N. Kawaguchi;T. Yanagida
对浮区法生长的未掺杂和掺Tb的CaYAlO 4单晶的光学、闪烁和剂量学性能进行了评价。在250 nm激发下，在385-620 nm处观察到Tb掺杂CaYAlO 4样品的光致发光（PL）发射峰，该发射峰是由Tb 3+离子的4f-4f跃迁引起的。在X射线辐照下，Tb掺杂CaYAlO 4晶体的闪烁峰与PL发射峰一致。在剂量学性质方面，0.1%Tb掺杂晶体在0.01-1000 mGy范围内表现出最高的热释光强度和最宽的线性响应。
Optical, scintillation, and dosimetric properties of the undoped and Tb-doped CaYAlO4single crystals grown by the floating zone method were evaluated. Several photoluminescence (PL) emission peaks due to the 4f–4f transitions of Tb3+ion were observed at 385–620 nm under excitation at 250 nm in Tb-doped CaYAlO4samples. Under X-ray irradiation, scintillation peaks of the Tb-doped CaYAlO4crystals were consistent with the PL emission peaks. In terms of a dosimetric property, the 0.1% Tb-doped crystal exhibited the highest thermally stimulated luminescence intensity and the widest linear responses in the range of 0.01–1000 mGy among the samples.