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用蒙特卡罗方法及可适应多种截面的三维多群P3 中子输运蒙特卡罗程序MCMG ,计算比较了不同裂变材料使用向量裂变谱与矩阵裂变谱的计算结果 ,通过与MCNP程序结果的比较 ,确信两种裂变谱对计算结果的影响是存在的 ,但对计算结果不会带来本质影响 .同时还比较了不同中子截面库计算结果
Monte Carlo method and multi-group three-dimensional multi-cluster P3 neutron transport Monte Carlo program MCMG are used to calculate and compare the calculated results of vector fission spectrum and matrix fission spectrum with different fission materials. By comparing with MCNP program results It is convinced that the influence of the two kinds of fission spectra on the calculation results exists but the calculation results will not be affected fundamentally.At the same time,