Measurement of L X-Ray relative intensities for selected heavy elements

摘要

The L-shell X-ray relative intensities /(L_l/L_α), /(Lβ/L_α) and /(Lγ/L_α) for Ba, Pr, Pt, Hg, and Bi, have been measured at the excitation energy of 20.48 keV. Measurements have been performed using a system that consists of X-ray tube as an excitation source and Si(Li) detector. Theoretical values of the relative intensities have been calculated using theoretical values of L-subshell ionization cross-sections, L-subshell fluorescence yields, Coster-Kronig probabilities and fractional X-ray emissions. Experimental results have been compared with the theoretically calculated values. The measured values showed reasonable agreement with theoretical values.