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采用U-Pu循环,完成了不同氚增殖剂和冷却剂的裂变抑制包层设计。设计中,考虑了环形效应和共振自屏效应。基于一维模型的优化计算结果,指出要求的中子学性能能够达到。为了完成多维设计,研制了三维中子源抽样程序;用具有连续能量截面的蒙特卡洛程序MCNP完成了多维中子学设计;研究了中子源密度分布对中子学性能的影响。结果指出:聚变功率为2000MW,运行因子为0.75时,Li_2O和液态金属自冷包层在氚自给的情况下,~(239)Pu的年产量都能达到4000kg。
The U-Pu cycle was used to complete the fission suppression cladding design of different tritium multipliers and coolants. In the design, ring effect and resonance self-screen effect are considered. Based on the results of the optimization calculation of the one-dimensional model, it is pointed out that the required neutron behavior can be achieved. In order to complete the multidimensional design, a three-dimensional neutron source sampling program was developed. The multi-dimensional neutron design was completed by a Monte Carlo program MCNP with continuous energy cross sections. The effects of neutron source density distribution on neutron properties were also studied. The results show that the annual output of ~ (239) Pu can reach 4000kg when the fusion power is 2000MW and the operating factor is 0.75.