摘要
使用^(60)Co放射源对掺铈钆镓铝石榴石(Ce:GAGG)闪烁晶体样品进行辐照,剂量率为3×10^(5)Rad/h,辐照总剂量分别为10^(6)Rad、10^(7)Rad和10^(8)Rad。通过测试辐照前后Ce:GAGG闪烁晶体样品的透过率、相对光输出、能量分辨率及衰减时间来研究辐照效应。实验结果表明,经过10^(8)Rad辐照,晶体的透过率在450~900 nm波段无明显变化,在320 nm处降幅最大(为8.9%);晶体的光输出降低了1.47%,能量分辨率略有下降;晶体的相对光输出、能量分辨率及衰减时间等性能未发生明显改变。验证了该晶体具有良好的抗γ辐照能力,在高剂量核辐射探测领域中具有广阔的应用前景。
Ce:GAGG scintillation crystal samples were irradiated using a^(60)Co radiation source at a dose rate of 3×10^(5)Rad/h,and the total irradiation doses delivered to the samples were 10^(6),10^(7),and 10^(8)Rad.The effects of irradiation were investigated by measuring the transmittance,relative light output,energy resolution,and decay time of the Ce:GAGG scintillation crystal samples before and after irradiation.The experimental results showed that after irradiation at a dose of 10^(8)Rad,the transmittance of the crystal remained unchanged in the 450-900 nm,and the lowest transmittance(8.9%)was detected at 320 nm.The light output of the crystal decreased by 1.47%,whereas the energy resolution deteriorated only slightly.The relative light output,energy resolution,and decay time of the crystal did not change significantly.These results confirm the high resistance of the crystal toγ-ray irradiation and demonstrate its broad application prospects in high-dose nuclear radiation detection.
作者
韩恒利
王强
万前银
屈菁菁
安康
陈研
肖雄
任科静
丁雨憧
HAN Hengli;WANG Qiang;WAN Qianyin;QU Jingjing;AN Kang;CHEN Yan;XIAO Xiong;REN Kejing;DING Yuchong(The 26th Institute of China Electronics Technology Group Corporation,Chongqing 400060,China;CETC Chip Technology(Group)Co.,Ltd.,Chongqing 401332,China;ICT-NOT Engineering Research Center of Ministry of Education,Chongqing University,Chongqing 400044,China;College of Aerospace Engineering,Chongqing University,Chongqing 400044,China)
出处
《压电与声光》
北大核心
2025年第1期104-107,共4页
Piezoelectrics & Acoustooptics
基金
国家重点研发计划资助项目(2022YFF0706400)。
关键词
透过率
相对光输出
能量分辨率
衰减时间
辐照损伤
transmittance
relative light output
energy resolution
decay time
radiation damage
