Abstract:

Using the Monte Carlo particle transport code MCNP and the European inventory code FISPACT-2007, activation calculation analysis for China helium cooled ceramic breeder test blanket module (CN HCCB TBM) and its ancillary systems (together called HCCB TBS) has been carried out based on the latest design of HCCB TBM and neutronic C-lite model provided by ITER. The radioactivity, afterheat and contact dose rate of the various structure components have been obtained and discussed. The results show that the total radioactivity and afterheat of HCCB TBM are 2.348×10¹⁶ Bq and 5.826 kW at shut down respectively. Activation calculation results can be used as the basic input data for other analyses of HCCB TBS, including safety analysis, maintenance, radwaste management, etc.

Key words: HCCB TBS, Radioactivity, Afterheat, Contact dose rate

摘要：

基于中国氦冷固态增殖剂试验包层模块(CN HCCB TBM)的最新设计方案和ITER提供的中子学基准模型C-lite，采用国际通用的Monte Carlo粒子输运程序MCNP和欧洲活化程序FISPACT-2007对HCCB TBM及其辅助系统(统称为HCCB TBS)进行了详细的活化计算分析，得到并讨论了各结构部件的放射性、余热和接触剂量率结果。结果表明，停堆时HCCB TBM模块的总放射性和总余热分别为2.348×10¹⁶ Bq和5.826 kW。活化计算结果可以为TBS的安全分析、维护和放射性废物处置等提供数据基础和分析依据。

关键词: 氦冷固态增殖剂试验包层模块, 放射性, 余热, 接触剂量率