Chemical effects in K emission spectra of 38Sr compounds

Abstract The recent advances in the instrumental operating detection system provide better understanding of the several atomic parameters such as characteristic x-ray emission lines, relative intensity ratio and line-width, transition probabilities, Coster-Kronig transitions and fluorescence yields. At present, the qualitative and quantitative analysis in wavelength dispersive spectrometers are routinely performed by the fundamental parameter approach method, but none of the approach has been implemented in the routine analysis to test the possible influence of chemical effects in the different compounds. The study of chemical effects with high resolution curved crystals offers a great opportunity to enhance the analytical potential of WDXRF instruments. In the present work, high resolution K α and K β emission spectra of 38 Sr compounds has been measured with wavelength dispersive spectrometer. First time, spectral structures correlated to the satellite lines and their energy differences are determined. In K α energy region, two satellite peaks ( K α 3 and Kα 4 ) are observed. The possible causes of energy shifts such as effective charge, relative intensity ratio and line-width, screening effect, shake process and electro-negativity and their roles in different 38 Sr compounds are also discussed.