Shape factor calculation method of SAXS scatterer

The invention discloses a shape factor calculation method of an SAXS scatterer, and belongs to the technical field of small-angle scattering. The invention provides a novel calculation method of a shape factor of a polyhedron-represented nanostructure, which comprises the following steps of: decomposing a polyhedron into polygonal pyramid units taking each surface as a substrate and a centroid as a vertex, decomposing each polygonal pyramid unit into each tetrahedron unit, and calculating the shape factor of each tetrahedron unit, so as to obtain the shape factor of the polyhedron-represented nanostructure. According to the linear superposition property of Fourier transform, the integral sum of the shape factors of all tetrahedron units is calculated as the shape factor of the scatterer, so that the small-angle X-ray scattering calculation method can be conveniently applied to small-angle X-ray scattering calculation of various complex structures. 本发明公开了一种SAXS散射体的形状因子计算方法，属于小角散射技术领域。本发明提出一种多面体表征的纳米结构的形状因子的新计算