聚变发电反应堆双冷液态锂铅包层活化分析和废料处理

Activation analysis and waste management for dual-cooled lithium lead breeder (DLL) blanket of the fusion power reactor FDS-Ⅱ

使用中子学程序系统VisualBUS以及相应的数据库HENDL1.0/MG对聚变发电反应堆双冷液态锂铅包层中各部件活化特性进行了计算和分析,包括包层各部件在停堆后不同时间处的衰变余热、活性、剂量率和潜在生物危害,并在此基础上参照欧洲聚变堆安全和环境评估(SEAFP)策略中有关核废料处理标准评估了受到中子辐照后的包层各区材料在退役后的核废料处理工作,包括核废料应该或者可能采用何种方式进行处理及其被完全清除干净的可能性。

The calculation and analysis on the activation levels of the different regions of dual-cooled lithium-lead （DLL） breeder blanket of FDS-Ⅱ, including afterheat, dose rate, activity and biological hazard potential after shutdown, were carried out with the neutronics code system VisualBUS and multi-group working library HENDL1. 0/MG. The safety and environment assessment of fusion power （SEAFP） strategy for the management of activated material is here applied to the DLL blanket, to define the suitable recycling （reuse of activated material） procedure and the possibility of clearance （declassification of the material with low activity level to non-active waste）.