移动式反应堆运输风险目标研究

Transportation Regulation and Risk Objectives of Transportable Reactors

目的针对新兴的移动式反应堆,提出基于风险分析的运输安全目标。方法对美国联邦法规10CFR71中§71.41符合性验证条款和§71.12特定豁免条款进行调研,提出通过风险评估的方法来满足相关部门对移动式反应堆运输的安全要求,并结合国内外与放射性材料运输和核动力厂辐射防护相关的法规标准,针对不同频率的事故类型提出相应的风险目标。结果根据美国能源部发布的潜在癌症致病率与辐照剂量转换因子对本文提出的风险目标进行了验算,结果表明本文提出的风险目标满足美国核管会在《核材料和乏燃料应用的风险通知决策指南》提出的风险要求。结论本文提出的移动式反应堆运输安全风险目标,有利于在运输中保护公众的健康和财产安全,对推动移动式反应堆的发展有着积极的意义。

The work aims to propose a transportation safety objective based on risk analysis for the emerging transportable reactors.The conformity verification clause of§71.41 and the specific exemption clause of§71.12 in 10CFR71 of the U.S.Code of Federal Regulations were investigated,and the risk assessment method was proposed to meet the safety requirements of relevant departments for the transportation of transportable reactors.Combined with Chinese and international laws and standards related to radioactive material transportation and radiation protection of nuclear power plants,corresponding risk objectives were put forward for accident types with different frequencies.Based on the potential cancer pathogenicity and irradiation dose conversion factors released by the U.S.Department of Energy,the risk objectives proposed were calculated,and the results showed that the risk objectives proposed met the risk requirements of the U.S.Nuclear Regulatory Commission's"Risk Notification Decision Guide for Nuclear Material and Spent Fuel Applications".The safety risk objectives of transportable reactors proposed are conducive to protecting the health and property safety of the public during transportation,and have positive significance for promoting the development of transportable reactors.