Fine Structure of the TiKβ1β′X-Ray Emission Spectrum

Abstract

A complex fine structure has been resolved in the $K{\beta }_1{\beta }^{\prime }$ ($3p-1s$ transitions) x-ray emission spectrum of pure titanium metal. The measurement was performed with a double-crystal fluorescence spectrometer. The observed fine structure has been interpreted as originating from the interaction between the unpaired $3d$ electrons and the $3p$ hole in the final state of the $K{\beta }_1$ transition. The calculations are based on the relative energies and intensities for free-ion states of the $3p^{5}3d^{2}4s^2$ configuration in the Russell-Saunders coupling scheme with and without inclusion of configuration interaction. The Landé interval rule applied to these results has been found to be of minor influence on the appearance of the theoretical spectra.