Summary
Source: https://github.com/tschoonj/xmimsim
Packages: http://lvserver.ugent.be/yum/base/ (fairly outdated)
License: Open Source GPL v3
Code: C, Fortran90
Path: /usr/bin/xmimsim
XMI-MSIM is an open source tool designed for predicting the spectral response of energy-dispersive X-ray fluorescence spectrometers using Monte Carlo simulations. It comes with a fully functional graphical user interface in order to make it as user friendly as possible. Considerable effort has been taken to ensure easy installation on all major platforms.
Using xmimsim
No setup required. Examples can be found in /usr/share/examples/xmimsim/
[elx]% which xmimsim /usr/bin/xmimsim