高分辨γ能谱同一性判断——距离法  

A Method of Distance to Judge the Identity of γ-ray Spectra

作　　者：任立学[1] 刘知贵[1] 权开波[1] 刘素萍[2] 胡永波[2] 

机构地区：[1]西南科技大学,四川绵阳621010 [2]中国工程物理研究院核物理与化学研究所,四川绵阳621900

出　　处：《西南科技大学学报》2011年第4期54-56,共3页Journal of Southwest University of Science and Technology

基　　金：西南科技大学青年基金项目(09zx3113)

摘　　要：放射源的高分辨能谱能起到标识和鉴别γ放射性物体的作用,通过对两个或多个高分辨γ能谱之间的同一性进行研究,可以判断出放射源是否具有同一性。提出设计谱图相互间的抽象距离系数来考察标本间相似程度的方法即距离法进行γ能谱同一性判断。实验表明该方法能实现γ能谱的同一性判别,具有较强的可用性。The high resolution gamma spectrum radioactive sources can logo and identify the radioactive objects. Through the research of coincident between two or more high-resolution gamma-ray spectra, can judge the identity of the radioactive sources. This thesis advanced a new method of designing the abstract distance coefficient between spectras to explore the level of similarity between samples i.e. a method of judging the identity between two gamma-ray spectra by distance. The experiment result shows that this method can accomplish the judgment about the identity between two gamma-ray spectra and has high feasibility.

关 键 词：Γ能谱 同一性 距离法 向量夹角法 

分 类 号：TL84[核科学技术—核技术及应用] X837[环境科学与工程—环境工程]