降雨过程中环境地表γ辐射剂量率变化的数值模拟  

Numerical Simulation of Surface Gamma Radiation Dose Rate Change in Rainfall

作　　者：王海鹏[1,2] 宋福祥[1] 李雪贞[1] 秦春艳[1] 陈凌[2] 李航[2] 

机构地区：[1]北京市辐射安全技术中心,北京100089 [2]中国原子能科学研究院,北京102413

出　　处：《核电子学与探测技术》2014年第4期470-473,共4页Nuclear Electronics & Detection Technology

摘　　要：对降雨过程中的环境地表γ辐射剂量率升高的原因进行了分析,参考大气科学领域降水对气溶胶粒子清除过程的相关研究成果,对剂量率升高的过程进行模型分析,并进行了理论模拟计算,结果证明一般情况下理论计算曲线和实际测量曲线可以较好地符合,通过理论推导,结合实测的降雨强度数据,可以较好地模拟计算降雨过程的剂量率升高幅度,为判断降雨过程中监测数据可信度及是否存在人工辐射异常提供了理论参考。The paper analyze the environmental surface gamma radiation dose rate rise in the process of rainfall , reference the research results about the influence of precipitation on the washout of aerosol particle in atmos -pheric sciences field ,establish a model of the dose rate rising process , build the theoretical calculation equa-tion.The results show that calculation curves can be better conform to actual measurement curve .By the theo-retical derivation equation in this paper and the measured rainfall intensity data ,the calculation to judge whether there is artificially radiation anomalies is provided .

关 键 词：降雨 Γ辐射 氡子体 数值模拟 

分 类 号：TL7[核科学技术—辐射防护及环境保护]