工业辐照加速器迷道辐射场分布研究  

Research on the radiation field distribution in industrial irradiation accelerators maze

作　　者：张金帆 黄仲明 冯江平 陈志[3] ZHANG Jinfan;HUANG Zhongming;FENG Jiangping;CHEN Zhi(Guangdong Shenzhen Ecological Environmental Monitoring Centre Station,Shenzhen 518049,China;Pengfu Ecological Environment Technology(Shenzhen)Co.,Ltd,Shenzhen 518000,China;University of Science and Technology of China,Hefei 230027,China)

机构地区：[1]广东省深圳生态环境监测中心站,深圳518049 [2]鹏辐生态环境技术(深圳)有限公司,深圳518000 [3]中国科学技术大学,合肥230027

出　　处：《环境保护科学》2024年第5期101-105,共5页Environmental Protection Science

基　　金：国家自然科学基金资助(NSFC11375182);生态环境部核与辐射安全监管项目(环办核设函[2021]239号);深圳市科技创新委员会基础研究(面上项目)(JCYJ2021032414081203)。

摘　　要：针对目前常用的工业辐照加速器,通过现场监测和理论分析等方法,对加速器迷道内辐射场主要影响来源进行分析,在实际测量的基础上,对迷道辐射场分布情况进行模拟分析和量化研究。迷道内纵向辐射场分布较均匀,第一段迷道,迷道内的辐射场主要来源于迷道内的散射线,而透射线对其影响很小;对于第二段迷道,迷道内的辐射场主要来源于迷道内的散射线和透射线,而且两者贡献相当。该文研究成果为该类加速器迷道辐射场分布提供了有价值的参考和数据,对完善该类辐照加速器辐射防护标准体系有着重要的现实意义。The main sources of the radiation field in the accelerator maze through field monitoring and theoretical analysis were analyzed,and the radiation field distribution in the maze based on the actual measurement was simulated and quantified.The longitudinal radiation field in the labyrinth was evenly distributed.In the first segment of the maze,the radiation field in the maze mainly came from the scattering lines inside the maze,and the influence of transmitted rays was minimal.For the second segment of the maze,the radiation field inside the maze mainly came from the scattered lines and transmitted rays,and their contributions were equivalent.The research results provided valuable reference and data for the radiation field distribution in the maze of this type of accelerator and had important practical significance for improving the radiation protection standard system of this type of accelerator.

关 键 词：工业辐照加速器 迷道 蒙特卡罗程序 辐射测量 辐射场分布 

分 类 号：X837[环境科学与工程—环境工程] TL50[核科学技术—核技术及应用]