VSAS: A smart small-angle scattering data processing tool

Abstract

A visual Small-angle X-ray/neutron scattering data analysis software VSAS has been developed for the quantitative small-angle scattering data processing. VSAS provides a graphical interface which allows visualizing data fitting process to give a smart way to facilitate analysis. Two data processing methods corresponding to the two main functional modes of VSAS are presented, (i) the Guinier and Porod methods, and (ii) the distribution fitting method. Two examples of small-angle X-ray/neutron scattering data analysis using VSAS are presented, and the fitting results are compared to the transmission electron microscope (TEM) observation.