GSAS

GSAS (General Structure Analysis System) is a software used by scientists to analyze data from crystallography experiments, particularly X-ray or neutron diffraction. It helps determine the detailed three-dimensional arrangement of atoms within a crystal by interpreting the patterns produced when these rays interact with the material. By fitting the experimental data to a model of the crystal structure, GSAS allows researchers to refine and accurately visualize the atomic positions, aiding in the understanding of a material’s properties at the atomic level. It is a vital tool in materials science, chemistry, and biology for studying complex structures.