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用FORTRAN语言编写了计算已知晶体的电子衍射谱的通用程序。在晶体点阵参数为已知的情况下,可以计算任意晶系晶体的包含有高阶劳厄带的电子衍射谱。如果给出孪晶面指数,还可以计算孪晶的电子衍射谱。如有需要,将此程序稍加扩展,便可以计算有固定取向关系的两个晶体的合成电子衍射谱。在倒易点阵几何关系的计算中,引入正交倒易坐标系,同时采用矩阵方法,可以显著简化运算。
The general procedure for calculating the electron diffraction spectrum of known crystals has been written in the FORTRAN language. With crystal lattice parameters known, it is possible to calculate the electron diffraction spectrum of a high-order Laue band of any crystal system. If the twin plane index is given, the electron diffraction spectrum of the twin can also be calculated. If necessary, this program is slightly expanded to calculate the composite electron diffraction spectrum of two crystals with a fixed orientation relationship. In the calculation of reciprocal lattice geometry, the introduction of orthogonal reciprocal coordinate system, while using the matrix method, can significantly simplify the operation.