CiADS中次锕系核素嬗变实验燃耗标识核素选取与源项分析  

Burn-up Monitor Nuclide Selection and Source Term Analysis in CiADS Actinide Nuclide Transmutation Experiments

作　　者：范德亮 杨永伟[1,2,3] 郭宇尧 吴翔 房鹏 FAN Deliang;YANG Yongwei;GUO Yuyao;WU Xiang;FANG Peng(Institution of Modern Physics,Chinese Academy of Sciences,Lanzhou 73000,China;School of Nuclear Science and Technology,University of Chinese Academy of Science,Beijing 100049,China;Advanced Energy Science and Technology Guangdong Laboratory,Huizhou 516000,Guangdong,China)

机构地区：[1]中国科学院近代物理研究所,兰州730000 [2]中国科学院大学核科学技术学院,北京100049 [3]先进能源科学与技术广东省实验室,广东惠州516000

出　　处：《原子核物理评论》2024年第4期1099-1105,共7页Nuclear Physics Review

摘　　要：加速器驱动的次临界系统(ADS)在嬗变方面具有独特优势,在ADS装置上开展锕系核素嬗变燃耗测量实验,具有重要的现实意义。通过对CiADS堆芯进行燃耗计算,得到了燃料芯块中各种核素的含量。分析对比这些核素的伽马光子发射率、半衰期以及能量,分析结果表明:Cs-137是CiADS嬗变实验最合适的燃耗标识核素。The Accelerator Driven subcritical System(ADS)has a unique advantage in transmutation.It has important practical significance to conduct experiments on transmutation and burnup measurement of actinide nuclides in an ADS device.By performing burn-up calculation on the CiADS core,the composition of various nuclides in the fuel pellets is obtained.A comprehensive analysis of the half-life,gamma photon emission rate and energy of these nuclides has been conducted,revealing that the Cs-137 is the most appropriate burn-up indicator nuclide in CiADS transmutation experiments.

关 键 词：ADS 标识核素 铯-137 燃耗测量 

分 类 号：TL329[核科学技术—核技术及应用]