Xraytrace is a raytracing solver for addressing the X-ray standing wave field calculations in realistic objects on solid surfaces. It uses voxel based computational domain geometry, variety of source and data evaluation options and graphics card computing support.
The solver is a command-line application working under Linux environment even if it its simple C code might be translateable also for other operating systems. Graphics card support is working with Nvidia CUDA capable cards.
Xraytrace has been developed by Department of Nanometrology, Czech Metrology Institute with support of EMPIR programme project 3DMetChemIT funded by Euramet participating countries and European Comission.
24/01/2018: this site created.
22/01/2018: updated periodic boundary conditions source.
22/12/2017: added Xraylib data handling with variable density
Only CVS code acces is now provided for developers. This can be done using command
cvs -d prutok.cmi.cz:/cvs co xraytrace
For more detailed instructions see the on-line documentation.
Xraytrace performs direct raytracing in voxel based material, which means tracing rays from source, through material, until they exit the simulation domain. Geometrical optics is used for ray path calculation, unless some special algorithm is used (e.g. at boundary). Material data are given as structured grid .vtk file formed by integers, associated optical constants are given in a separate file. Rays and other settings are controlled via parameter file.
The voxel based raytracing used within the solver has some benefits
It has also some drawbacks, like complicated handling of evanescent fields or computational demandeness for larger domains.
ContactPetr Klapetek, Department of Nanometrology, Czech Metrology Institute