HWRR堆本体退役风险评价  

Risk Assessment for HWRR Decommissioning

作　　者：张焕朝[1] 柯国土[1] 周一东[1] 

机构地区：[1]中国原子能科学研究院反应堆工程研究设计所,北京102413

出　　处：《原子能科学技术》2013年第9期1604-1608,共5页Atomic Energy Science and Technology

摘　　要：建立了一种针对反应堆退役的风险评价方法,主要包括源项分析、危害分析、频率分析、事故后果分析和风险分析5个环节,依据该方法设计开发了反应堆退役风险评价系统(RDRAS)。采用RDRAS对重水研究堆(HWRR)堆本体退役包含的11项退役活动中可能出现的53种情况,分别进行建模和计算,确定了每种情况下工作人员面临的放射性风险,并对结果的不确定性进行了分析。A risk assessment method for reactor decommissioning was established. The method comprises five procedures： source analysis, hazard analysis, frequency analysis, accident consequence analysis and risk analysis. Based on the method, the reactor decommissioning risk assessment system （RDRAS） was developed. 53 situations of the 11 activities that may arise in the HWRR decommissioning process were modeled and calculated with RDRAS to identify the radioactive risk that working staff may face in each situation, and the uncertainties of the results were analyzed.

关 键 词：风险评价 反应堆 退役 危害 

分 类 号：TL934[核科学技术—辐射防护及环境保护]