Premium
Study of mean excitation energy and K‐shell effect for electron probe microanalysis
Author(s) -
Brizuela Horacio,
Riveros José Alberto
Publication year - 1990
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.1300190405
Subject(s) - stopping power , excitation , microanalysis , electron shell , atomic physics , shell (structure) , electron microprobe , microprobe , electron , energy (signal processing) , excitation function , electron probe microanalysis , atomic number , atomic theory , physics , chemistry , nuclear physics , materials science , ion , ionization , mineralogy , quantum mechanics , organic chemistry , composite material
The K‐shell correction to stopping power developed by Livingston and Bethe and its influence on electron microprobe analysis are discussed. A comparison among models for the mean excitation energy J given by different workers was made. Two new expressions for J as a function of atomic number Z are suggested for the microanalysis of samples with K‐shell effects: one from stopping power experimental data and the other one from Chu and Powers' theoretical calculations. Livingston and Bethe's K‐shell correction was applied to both new models.