title: PoDFluX: a new Monte Carlo ray-tracing model for powder diffraction and fluorescence.
abstract: PoDFluX is a new Monte Carlo ray-tracing program that simulates from first principles x-ray powder diffraction from crystalline materials and x-ray fluorescence from materials with a defined elemental composition. This model has been written primarily for the optimization of miniaturized planetary x-ray diffraction instrumentation but wider applications are certainly possible. A particular strength of the model is the implementation of several variance-reduction techniques for the minimization of execution times. Comparisons of model output with experimental diffraction and fluorescence data show good quantitative agreement.
authors: Space Research Centre, Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, United Kingdom.
authors: Graeme M
authors: GM
authors: Hansford
mesh_terms: D000465:Algorithms; D001466:Barium Sulfate / Q000737:chemistry; D002254:Carbonates / Q000737:chemistry; D017608:Chromium Compounds / Q000737:chemistry; D003198:Computer Simulation; D005453:Fluorescence; D008962:Models, Theoretical; D009010:Monte Carlo Method; D017785:Photons; D015203:Reproducibility of Results; D013997:Time Factors; D014961:X-Ray Diffraction / Q000295:instrumentation / Q000379:methods*
chemical_list: D002254:Carbonates; D017608:Chromium Compounds; D001466:Barium Sulfate; C005686:sodium carbonate