Thermally and optically stimulated radiative processes in Eu and Y co-doped LiCaAlF6 crystal
Thermally and optically stimulated radiative processes in Eu and Y co-doped LiCaAlF6 crystal
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Eu 和 Y 共掺杂 LiCaAlF6 晶体的热和光刺激辐射过程
DOI：
10.1016/j.nima.2014.12.039
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
and Y. Fujimoto
中科院分区：
文献类型：
--
作者：
K. Fukuda;T. Yanagida;and Y. Fujimoto
为了提高Eu掺杂LiCaAlF6晶体的剂量计性能，进行了钇共掺杂的尝试。采用微下拉技术制备了Eu掺杂和Eu，Y共掺杂的LiCaAlF6，研究了其光释光（OSL）和热释光（TSL）等剂量学特性。通过钇的共掺杂，OSL和TSL的发射强度提高了几个数量级。与此相反，钇共掺晶体的闪烁特性，如X射线诱导的瞬发发光强度和中子辐照下的光产额下降。
Yttrium co-doping was attempted to enhance dosimeter performance of Eu doped LiCaAlF6crystal. Eu doped and Eu, Y co-doped LiCaAlF6were prepared by the micro-pulling-down technique, and their dosimeter characteristics such as optically stimulated luminescence (OSL) and thermally stimulated luminescence (TSL) were investigated. By yttrium co-doping, emission intensities of OSL and TSL were enhanced by some orders of magnitude. In contrast, scintillation characteristics of yttrium co-doped crystal such as intensity of prompt luminescence induced by X-ray and light yield under neutron irradiation were degraded.