【《国际原子能机构通报》1985年第1期第53页报道】在三里岛事故以后,作为许多概率风险评价和安全研究计划的结果,与退化堆芯有关的严重事故开始在某些国家的核电站安全方面日益引起人们的重视。问题在于:是否一定要大大改变核电站的基础设计,以便防止这些事故的发生;或者如果这些事故发生,如何减轻其后果。在最近一次国际原子能机构讨论会上达 [IAEA Bulletin, No. 1, 1985, p. 53] After the Sanli Island accident, as a result of many probabilistic risk assessments and safety research plans, serious accidents related to degraded cores began in nuclear power stations in certain countries. The security aspect has increasingly attracted people’s attention. The question lies in whether it is necessary to substantially change the basic design of nuclear power plants in order to prevent the occurrence of these accidents; or if these accidents occur, how to reduce their consequences. At the most recent IAEA seminar