Study of mean excitation energy and K‐shell effect for electron probe microanalysis

Abstract

Abstract 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.