ATSAS is a program suite for small-angle scattering data analysis from biological macromolecules. It includes multiplatform data manipulation and displays tools, programs for automated data processing and calculation of overall parameters, usage of high- and low-resolution models from other structural methods, algorithms to build three-dimensional models from weakly interacting oligomeric systems and complexes, and enhanced tools to analyse data from mixtures and flexible systems.

Licenses Academic Free License 3.0
Categories Data analysis Data reduction SAXS/SANS
Software Requirements -
Hardware Requirements -
Platforms Mac OS Linux Windows
Languages C Fortran Python
Input Formats ASCII
Output Formats ASCII
At the ESRF

The ATSAS executables are available on the central cluster. Examples of calls: >dammin, >gnom, >dammif, >crysol, etc

In addition they are installed on the data analysis computers of BM29 (s. the BL responsible for more details)

At Diamond Light Source

To see which ATSAS versions are installed into the modules system:

> module avail ATSAS

From the output of this command, select a specific version or load the default by omitting the version number:

> module load ATSAS

This will add the ATSAS executables to the PATH.

Documentation / Tutorials



Petoukhov, M.V., Franke, D., Shkumatov, A.V., Tria, G., Kikhney, A.G., Gajda, M., Gorba, C., Mertens, H.D.T., Konarev, P.V. and Svergun, D.I. (2012) "New developments in the ATSAS program package for small-angle scattering data analysis" J. Appl. Cryst. 45, 342-350

Instruments BM29 (ESRF) ID02 (ESRF)
This software is used at these institutes
No example datasets have been uploaded for this software.