K X-ray fluorescence cross-sections for some light elements excited by keV photons

Abstract

K _α and K _β X-ray fluorescence cross-sections have been experimentally determined for the elements Cu, Se, Y, and Mo at excitation energies 23.62, 24.68, 36.82, 43.95, 48.60, and 50.20keV using an X-ray tube with a secondary exciter system as the excitation source. The X-ray tube with a secondary target arrangement was used to obtain high intensity with high degree of monochromatization. Experimental values were compared with the theoretical values using tabulated I ${{I_{K_\beta } } \mathord{\left/ {\vphantom {{I_{K_\beta } } {I_{K_\alpha } }}} \right. \kern-\nulldelimiterspace} {I_{K_\alpha } }}$ ratios based on Hartree-Fock and Hartree-Slater theories calculated by Scofield. The experimental values for all the elements at various excitation energies are in good agreement with the theoretical values.