探测封装浓缩铀属性的γ无损分析方法  

RESEARCH ON A METHOD OF SHIELDED HEU ATTRIBUTION MEASUREMENT

作　　者：李鲲鹏[1] 赵学军[1] 

机构地区：[1]中国原子能科学研究院放射化学研究所,北京102413

出　　处：《核化学与放射化学》2002年第4期214-217,共4页Journal of Nuclear and Radiochemistry

摘　　要：通过探测2 32 U衰变子体核素2 0 8Tl的 2 61 4 75keV特征γ射线能峰 ,确定铀样品中存在的2 32 U。用理论分析和γ能谱分析验证了从铀 钚循环中得到的浓缩铀会有少量2 32 U的积累或玷污 ,并且在较厚金属屏蔽的情况下也可以有效测定 2 61 4A special assay method that determining the high energy gamma ray 2 614.75 keV from 208Tl, the daughter of 232U is presented. By which the attributes of uranium can be learned about. The theoretical analysis and experiment results prove that HEU from U-Pu cycle contains a few 232U. The gamma ray 2 614.75 keV can be detected even under the condition of thick shield. It is proved that this method is feasible to determine HEU.

关 键 词：属性 核保障 浓缩铀 γ无损分析 核材料 

分 类 号：TL271[核科学技术—核燃料循环与材料]