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A mathematical model for tertiary X‐rays from heterogeneous samples
Author(s) -
Dunn William L.,
Efird Carl R.,
Gardner Robin P.,
Verghese Kuruvilla
Publication year - 1975
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.1300040106
Subject(s) - attenuation , sample (material) , fraction (chemistry) , fluorescence , detector , x ray fluorescence , mathematical model , variable (mathematics) , primary (astronomy) , physics , optics , chemistry , statistics , mathematics , thermodynamics , chromatography , mathematical analysis , astrophysics
A mathematical model is derived for tertiary X‐ray fluorescence from heterogeneous samples based on generally accepted primary X‐ray fluorescence models. Variable source‐sample‐detector geometry, sample particle size and packing fraction effects are included. The model is expressed explicitly for three different ways of treating the attenuation within the sample. Calculations of the model are made for comparison with primary and secondary fluorescence calculations, and for comparison with calculated and experimantal results reported in the literature which include tertiary effects.