Microfocus small-angle X-ray scattering at SSRF BL16B1  

作　　者：滑文强 王玉柱 周平 胡涛 李秀宏 边风刚 王劼 

机构地区：[1]Shanghai Synchrotron Radiation Facility,Shanghai Institute of Applied Physics,Chinese Academy of Sciences

出　　处：《Chinese Physics C》2017年第4期169-176,共8页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11505278 and 11675253)

摘　　要：Offering high-brilliance X-ray beams on micrometer length scales,the μSAXS at SSRF BL16 B1 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 1.5×10^10 photons/s.Two position-resolved scanning experimental methods,STXM and CT,are combined with μSAXS.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 μSAXS method.Offering high-brilliance X-ray beams on micrometer length scales,the μSAXS at SSRF BL16 B1 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 1.5×10^10 photons/s.Two position-resolved scanning experimental methods,STXM and CT,are combined with μSAXS.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 μSAXS method.

关 键 词：small-angle X-ray scattering KB mirror smearing effects image blind restoration 

分 类 号：O434.1[机械工程—光学工程]