多能点γ准直标定源的建立及其应用  

Building and application of a collimated γ-ray source with multi-energy point

作　　者：曾凡松[1] 俞祥忠[1] 李晓燕[1] 伍晓利[1] 张建华[1] 李如荣[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,绵阳621900

出　　处：《辐射研究与辐射工艺学报》2009年第3期151-155,共5页Journal of Radiation Research and Radiation Processing

摘　　要：介绍了利用工业60Co线状源建立多能点γ准直标定源的方法。阐述了理论依据、大幅度降低散射本底的措施、理论计算方法、注量率实测方法、对安全防护和承重问题的考虑等,并对实验结果进行了讨论。The paper introduces a method to build up a collimated multi-energy point T-ray source for experiment with an industrial 60Co source. In details the theoretical design, measurement method of reducing scattered background greatly and measurement of flux, theoretical computation method, solution for radioprotection and weight bearing problem, and so on have been described and discussed. The experimental results show that the building of new method has better application.

关 键 词：工业60Co线状源 多能点 γ准直标定源 散射本底 注量率 

分 类 号：O571[理学—粒子物理与原子核物理] TB3[理学—物理]