Welcome to the Trac site for NCNR SANS Software

This wiki and subversion repository browser are for software developed and managed by the SANS group at the NIST Center for Neutron Scattering.

The NCNR has a long history of providing easy to use data reduction and analysis tools to its users. In the case of the SANS and USANS instruments, this is through a set of macros and functions implemented using the IGOR Pro™ package from Wavemetrics Inc, which is a general purpose plotting and data analysis package with a rich in-built programming language.

With the advent of the NSF funded DANSE Project, which aims to build a complete suite of neutron scattering data analysis tools, and the opening of new neutron scattering user facilities at the Oak Ridge National Lab (HIFR cold source), ANSTO in Australia (OPAL reactor) and KAERI in South Korea (HANARO cold source) we are taking the opportunity to expand the packages we provide.

One initiative is to explore collaboration with the above mentioned facilities to produce a shared code base of IGOR procedures for the reduction and analysis of small angle scattering data. This would provide to users a familiar environment whichever facility they use and make co-analysis of data from different facilities much simpler, an often heard refrain from the nomadic scattering community. In the version 7.10 Release of the NCNR Package, users can load and reduce data collected at HFIR (BioSANS and HiResSANS, code modifications provided by the DANSE project), ILL (D22), and ANSTO (Quokka).

Another initiative in conjunction with the scattering community is to produce reduced (1D, I(Q)) data in a common, standardized output format. Beginning with the 7.0 release, the NCNR package writes data in canSAS XML format. This data format is a product of international canSAS meetings, and the format is supported by many other facilities (ISIS, APS (Argonne), + others to be named later).

As always, these initiatives are driven by the needs and suggestions from facility users. Our aim is to enhance the suite of tools available to our users in order to permit faster, more complex analyses of their scattering data than are currently possible.

Current release package - Version 7.20 - June 2013


For a complete listing of what's new in the version 7.20 release:

There are also tips and tools for those using the repository:

For details of the canSAS XML data format:

For more information about the DANSE project and the SANS subproject:

Please contact Andrew Jackson (ajj@… x3146) with any questions.

Last modified 4 years ago Last modified on Jul 12, 2013 10:04:09 AM