In X-ray crystallography, wide-angle X-ray scattering (WAXS) or wide-angle X-ray diffraction (WAXD) is the analysis of Bragg peaks scattered to wide angles, which (by Bragg's law) are caused by sub-nanometer-sized structures. [1]

SAXS扫描角度一般为0.2-2度。 测结晶度用（广角WAXD）就行。 测长周期或结晶厚度用小角x射线散射SAXS。 注意区分一个是衍射，一个是散射。 小分子晶体主要用WAXD研究，高分子材料SAXS比较重要。 小角衍射：小角是指5度以内。 小角衍射范围可以设置在1-90度。

Wide-angle X-ray diffraction (WAXD or XRD), also known as wide-angle X-ray scattering (WAXS), is widely used for the characterization of crystalline materials. The technique relies on the constructive interference of monochromatic X-rays incident on a crystalline sample.

WAXS usually covers angular 5-60 degree. For SAXS, it covers much smaller angle, which is up to 1 degree. When X-rays are directed at the solids, they are scattered in some certain patterns depend on the internal structure of the material. A crystalline solid can consist of regularly spaced atoms (electrons) that are referred as imaginary planes.

Jan 1, 2016 · Wide-Angle X-ray Scattering (WAXS) or Wide-Angle X-ray Diffraction (WAXD) is an x-ray-diffraction technique that is often used to determine the crystalline structure of inorganic and organic polymeric membranes.

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Wide-angle X-ray scattering (WAXS) or WAXD is the most widely used method to provide information on the crystallographic structure, atomic positions, and sizes in a unit cell, and, to some extent, chemical composition as well as chemical stoichiometry.

Apr 10, 2023 · Small-angle X-ray scattering (SAXS) and wide-angle X-ray diffraction (WAXD) are widely used techniques in synchrotron and X-ray free electron laser facilities.

Jan 1, 2022 · Ideally, the spatial resolution would range from Å to nm-scale, a spatial range covered by wide-angle X-ray diffraction (WAXD) and small-angle X-ray scattering (SAXS). This chapter focuses on the fundamentals, instrumentation, recording techniques, and data interpretation of WAXD and SAXS.

Wide angle X-ray scattering (WAXS) or Wide angle X-ray diffraction (WAXD) is an X-ray diffraction technique that is often used to determine the crystalline structure of polymers.