Old notices
These pages collect together notices posted on the IUCr web site in past years. They are retained for archival interest, but there is no guarantee (or likelihood) that many of the web links found in these notices will still be active.
Updates to the ATSAS package
Small-angle scattering (SAS) is an increasingly popular technique for the structural characterization of macromolecular solutions. First released in 2003, the ATSAS package is arguably one of the most popular and comprehensive SAS data analysis and modelling platforms for isotropic SAS on solutions of biological macromolecules and nanoparticles.
A new article in Journal of Applied Crystallography [Franke et al. (2017). J. Appl. Cryst. 50] describes the numerous additions developed across ATSAS versions 2.5 to 2.8, which have become available to the scientific community since the authors' last article on the program in 2012. It provides a comprehensive overview of all of ATSAS with its multitude of applications to SAS data analysis. ATSAS programs cover the full spectrum of SAS data processing, manipulation and interactive tasks, ranging from radially averaging two-dimensional data into one-dimensional scattering curves, to the extraction of structural parameters, the computation of distance distribution functions and the reconstruction of three-dimensional models. The ATSAS release 2.8 is freely available for academic users from https://www.embl-hamburg.de/biosaxs/software.html.
