Premium
Calculation of the x‐ray fluorescence intensity from heterogeneous substances by the Monte Carlo method
Author(s) -
Gunicheva T. N.,
Kalughin A. G.,
Afonin V. P.
Publication year - 1995
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.1300240407
Subject(s) - monte carlo method , computation , scattering , intensity (physics) , statistical physics , fluorescence , x ray fluorescence , matrix (chemical analysis) , experimental data , particle (ecology) , biological system , computational physics , materials science , physics , chemistry , algorithm , optics , computer science , mathematics , statistics , chromatography , oceanography , biology , geology
A Monte Carlo simulation model for the computation of the x‐ray fluorescence intensity from heterogeneous substances is proposed. The geometric presentation used and its simulation provide an adequate description of the experimental data for slurries, alloys and powders with the same and different particle sizes for the fluorescent phase and the matrix. The total fluorescence flux is considered to consist of the first‐, second‐ and third‐order fluorescence. The adequacy of the model was estimated by comparison of the computational results with the experimental data and with calculation results from the analytical equations. The model made possible the evaluation of the magnitude of the enhancement and scattering effect contributions for different substances.