Scintillation Properties of SrF2 Translucent Ceramics and Crystal
Scintillation Properties of SrF2 Translucent Ceramics and Crystal
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SrF2半透明陶瓷和晶体的闪烁特性
DOI：
10.1016/j.ijleo.2018.04.082
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发表时间：
2018
期刊：
影响因子：
3.1
通讯作者：
T. Yanagida
中科院分区：
文献类型：
--
作者：
T. Kato;N. Kawano;G. Okada;N. Kawaguchi;K. Fukuda;T. Yanagida
采用放电等离子烧结（SPS）方法制备了SrF 2半透明陶瓷，并与SrF 2晶体进行了对比，研究了SrF 2半透明陶瓷的闪烁性能和热释光（TSL）发光曲线。两种样品在X射线照射下均显示出闪烁，发射峰在300 nm处。基于测量的闪烁衰减时间，在300 nm处的发射的起源归因于自陷激发。在~（57）Co γ射线照射下，SrF_2半透明陶瓷的闪烁光产额约为8900光子/MeV。此外，半透明陶瓷的余辉水平低于晶体。
We have developed SrF2translucent ceramic by using the spark plasma sintering (SPS) method, and investigated scintillation properties and thermally stimulated luminescence (TSL) glow curves, in comparison with a SrF2crystal. Both of the samples showed scintillation with emission peaks at 300 nm under X-ray irradiation. Based on the scintillation decay times measured, the origin of emission at 300 nm was attributed to self-trapped excitation. The scintillation light yield of the SrF2translucent ceramic was evaluated to be about 8900 photons/MeV under57Co γ-rays. In addition, the afterglow level of the translucent ceramic was lower than that of the crystal.