天然铀存储库辐射屏蔽计算方法优化研究  

Research on Optimization of Calculation Method of Radiation Shielding in Natural Uranium Repository

作　　者：苏晓书 刘颖 王兴华 冀东 刘晓超 高朋杰 王金明 王龙 SU Xiaoshu;LIU Ying;WANG Xinghua;JI Dong;LIU Xiaochao;GAO Pengjie;WANG Jinming;WANG Long(The Fourth Research and Design Engineering Corporation,CNNC,Shijiazhuang 050021,China;China National Uranium Co.,Ltd.,CNNC,Beijing 100013,China)

机构地区：[1]中核第四研究设计工程有限公司,河北石家庄050021 [2]中国铀业有限公司,北京100013

出　　处：《铀矿冶》2023年第2期69-75,共7页Uranium Mining and Metallurgy

摘　　要：为实现天然铀存储库辐射屏蔽最优化,以天然铀存储库屏蔽体外剂量率设计限值为参考控制目标,在分析现有屏蔽计算方法准确性的基础上,利用Microshield软件对天然铀存储库辐射屏蔽计算方法及源项模型进行了优化,该方法以单个存储桶体源模型为基础,重点考虑铀子体及多个存储桶叠加的影响,其计算结果与实际监测结果接近,计算方法可靠,能够为天然铀存储库辐射屏蔽方案设计提供有效支撑。In order to optimize the radiation shielding of natural uranium repository,taking the design limit of the external dose rate of the shielding of natural uranium repository as the reference control objective,and on the basis of analyzing the accuracy of existing shielding calculation methods,Microshield software is used to optimize the radiation shielding calculation method of natural uranium repository,especially the source term model.This method is based on the single storage barrel source model,the influence of uranium daughter and the superposition of several storage barrels is mainly considered.The calculation results are close to the actual monitoring results,and the calculation method is reliable,which can provide effective support for the radiation shielding design scheme of natural uranium repository.

关 键 词：天然铀 存储库 辐射屏蔽 优化 

分 类 号：P619.14[天文地球—矿床学]