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Effects of selective excitation of x‐ray fluorescence of light elements: fluorine, oxygen, nitrogen and carbon
Author(s) -
Dukhanin A. Y.,
Pavlinsky G. V.
Publication year - 2006
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.884
Subject(s) - excitation , fluorine , chemistry , atomic physics , oxygen , fluorescence , carbon fibers , cascade , beryllium , auger electron spectroscopy , irradiation , nitrogen , auger , auger effect , analytical chemistry (journal) , materials science , optics , physics , chromatography , composite material , organic chemistry , quantum mechanics , composite number , nuclear physics
This paper describes three variants of the selective excitation of elements with low atomic number, i.e. fluorine, oxygen, nitrogen and carbon. One of the variants considers intra‐atomic cascade transitions in the elements of the enclosing matrix. Selective excitation effect values were calculated with consideration of atom excitation by photo‐ and Auger electrons, originating in the material irradiated. It is shown that in some cases the total input of the effects of selective excitation amounts to a few tens of percent of the analytical signal intensity. This study also examines x‐ray fluorescence excitation by irradiating x‐ray tubes with different anodes and varying beryllium window thickness. Copyright © 2006 John Wiley & Sons, Ltd.