本工作采用Monte-Carlo及二进制路径法两种方法对四十年来国际上悬而未决难度较大的嵌镶弯晶中子衍射问题进行了计算。包括对不同束宽中子功率反射率及衍射中子随弯晶表面不同位置的分布。两种方法都是基于将嵌镶弯晶分成许多平行于晶体表面的小层,对N(大数)个中子在各小层中的衍射、透射及吸收等传输过程一一进行跟踪,最后计算出从晶体表面射出的衍射中子、透射中子及在晶体中被吸收的中子总数。计算 In this work, Monte-Carlo and binary path methods are used to calculate the neutron diffraction problem of mosaic bent neutrons in the past 40 years. Including the different beam neutron power reflectivity and the distribution of diffractive neutrons with different positions on the surface of the crystal. Both methods are based on dividing the mosaic bent crystal into many small layers parallel to the surface of the crystal and tracking the diffraction, transmission and absorption of N (large number) neutrons in each small layer. Finally, Calculate the total number of diffracted neutrons, transmitted neutrons, and neutrons absorbed in the crystal that exit the crystal surface. Calculate