| Cs2LiYCl6∶Ce晶体的n/γ双探测闪烁性能研究 |
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| 引用本文： | 侯越云,桂强,张春生,杨蕾,袁辉平,刘珊,任国浩,张明荣. Cs2LiYCl6∶Ce晶体的n/γ双探测闪烁性能研究[J]. 人工晶体学报, 2021, 50(10): 1933-1939 |
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| 作者姓名： | 侯越云 桂强 张春生 杨蕾 袁辉平 刘珊 任国浩 张明荣 |
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| 作者单位： | 1.北京玻璃研究院有限公司,北京 101111;2.中国科学院上海硅酸盐研究所,上海 200050 |
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| 摘 要： | Cs2LiYCl6∶Ce(CLYC)晶体是一种具有n/γ双探测能力的新型闪烁晶体。采用坩埚垂直下降法生长出富6Li的CLYC晶体毛坯,经加工、封装得到φ50 mm×50 mm的CLYC闪烁晶体封装件,其对137Cs 662 keV γ射线的能量分辨率为4.22%;测量252Cf中子源的脉冲波形甄别(PSD)品质因子(FOM)为3.45。凭借其优异的性能,CLYC闪烁晶体有望在中子探测领域替代3He正比计数管,并可作为n/γ双探测的优选材料,应用于中子辐射探测器、放射性同位素识别仪、个人辐射剂量仪,以及其他中子、伽马射线的探测。
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| 关 键 词： | 闪烁晶体 Cs2LiYCl6∶Ce 中子/伽马甄别 中子辐射探测 坩埚下降法 脉冲波形甄别 能量分辨率 |
| 收稿时间： | 2021-08-23 |
Scintillation Properties of Cs2LiYCl6:Ce Crystal for Neutron and Gamma Dual Detection |
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| HOU Yueyun,GUI Qiang,ZHANG Chunsheng,YANG Lei,YUAN Huiping,LIU Shan,REN Guohao,ZHANG Mingrong. Scintillation Properties of Cs2LiYCl6:Ce Crystal for Neutron and Gamma Dual Detection[J]. Journal of Synthetic Crystals, 2021, 50(10): 1933-1939 |
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| Authors: | HOU Yueyun GUI Qiang ZHANG Chunsheng YANG Lei YUAN Huiping LIU Shan REN Guohao ZHANG Mingrong |
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| Affiliation: | 1. Beijing Glass Research Institute Co., Ltd., Beijing 101111, China;2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China |
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| Abstract: | Cs2LiYCl6:Ce(CLYC) is a novel scintillation crystal with the capability of neutron and gamma-ray detection. It can be used in the field of neutron and gamma-ray detection. The CLYC scintillation crystal with 95% enrichment of 6Li was grown by the vertical Bridgman method. After processing and moisture-proof packaging, a housed sample of φ50 mm×50 mm CLYC scintillation crystal was obtained. 4.22% energy resolution is measured at 662 keV of 137Cs gamma rays. Neutron-gamma discrimination is also achieved. The figure of merit (FOM) of pulse shape discrimination (PSD) measured with a 252Cf neutron source is 3.45. With its excellent performance, CLYC scintillation crystal is expected to replacement for Helium-3 gas in the field of neutron detection, and can be used as the preferred material for n/γ dual detection. So CLYC crystal can be used in neutron radiation detectors, radioisotope identification instruments, personal radiation dosimeters, and other neutrons-gamma detection. |
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| Keywords: | scintillation crystal Cs2LiYCl6:Ce n/γ discrimination neutron radiation detection Bridgman method pulse shape discrimination energy resolution |
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