SASfit has been written for analyzing and plotting small angle scattering data. It can calculate integral structural parameters like radius of gyration, scattering invariant, Porod constant. Furthermore it can fit size distributions together with several form factors including different structure factors. Additionally an algorithm has been implemented, which allows to simultaneously fit several scattering curves with a common set of (global) parameters. This last option is especially important in contrast variation experiments or measurements with polarised neutrons. The global fit helps to determine fit parameters unambiguously which by analyzing a single curve would be otherwise strongly correlated.

Licenses GNU General Public License 2.0
Categories Data analysis SAXS/SANS Modelling
Software Requirements -
Hardware Requirements -
Platforms Mac OS Linux Windows
Languages C Tcl
Input Formats ASCII
Output Formats ASCII
Contact email

SASfit executables downloadable from here

Documentation / Tutorials

SASfit manual



Instruments D22 (ILL) D33 (ILL) BM02 (ESRF) ID02 (ESRF) D11 (ILL)
No example datasets have been uploaded for this software.