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在国际热核实验堆(internationalthermonuclearexperimentreactor,ITER)中国氦冷固态实验包层模块(testblanketmodule,TBM)的初步设计的模型基础上,选择不同的中子增殖剂和氚增殖剂体积比,利用粒子输运程序MCNP(MonteCarloN-particletransportcode)对该TBM物理性能进行了研究。根据均匀混和模型的结果,在Be和Li4SiO4的体积比为2至6之间,氚增殖率最大可达1.20。因此,采用Be和Li4SiO4夹层布置,在几何上逼近最优体积比,选择前端Be和Li4SiO4体积比为2时,氚增殖率达到1.158,能够较好地满足聚变运行的氚自持条件。
Based on the preliminary design model of the helium-cooled solid experimental blanket module (TBM) of the ITER, different volume ratios of neutron multipliers and tritium multiplying agents were selected, and particle transport The program MCNP (Monte CarloN-particletransportcode) studied the physical properties of the TBM. According to the results of the uniform mixing model, the volumetric ratio of Be and Li4SiO4 is between 2 and 6, and the maximum tritium proliferation rate can reach 1.20. Therefore, adopting Be and Li4SiO4 sandwich arrangement, geometrically approaching the optimal volume ratio, and selecting the volume ratio of Be and Li4SiO4 as 2, the tritium proliferation rate can reach 1.158, which can well satisfy the tritium self-holding condition of fusion operation.