The open-source library libabsco provides routines for the computation of absorption correction factors for X-ray and neutron scattering.
31may12: Version 1.0.0 released. API has changed, computations mostly rewritten, extended documentation in white paper.
For the full history, see the change log.
git clone git://apps.jcns.fz-juelich.de/jwu-varia.git/
For the time being, send bug reports to the author, Joachim Wuttke