Microfocus small-angle X-ray scattering at SSRF BL16B1

Offering high-brilliance X-ray beams on micrometer length scales, the mu SAXS at SSRF BL16B1 has been established with a KB mirror system for studying small sample volumes, or probing microscopic morphologies. The SAXS minimum q value is 0.1 nm(-1) with a flux of 1.5 x 10(10) photons/s. Two position-resolved scanning experimental methods, STXM and CT, are combined with SAXS. To improve the significant smearing effect in the horizontal direction, an effective and easy-to-use desmearing procedure for two-dimensional SAXS patterns based on blind deconvolution was developed, and the deblurring results demonstrate the good restoration effect for the defocused image. Finally, a bamboo sample was used in the SAXS-CT experiment to illustrate the performance of the mu SAXS method.