在线产氚辐照装置物理参数模拟

摘要

在线产氚回路对我国氚增殖模块(TBM)增殖剂候选材料的考核、氚增殖剂材料的在线释放规律研究具有重要意义,辐照装置是在线产氚回路的关键部件.本工作采用MCNP程序模拟在线产氚辐照装置在堆内辐照时的物理参数,计算结果如下:自屏因子为0.430,等效反应截面为1.09×10-22 cm2,每日产量为2.8×1010Bq,总发热功率为8.2 kW.模拟计算结果为该装置的设计提供了必需的数据支持.%It is necessary to build in-pipe tritium breeder in our country in order to assess breeder material of tritium breeder module (TBM) and to find the release law of tritium. The irradiation vessel is one of the key components of TBM. The physical parameters about in-pipe tritium breeder were simulated with MCNP code. The values of the self-shielding factor, equivalent cross-section, daily production of tritium and total heating power are separately 0. 435, 1.09 × 10-22 cm2 , 2.8× 1010 Bq and 8.2 kW. And they would provide necessary data for designing the irradiation vessel.