Abstract
Lα/ Lℓ, Lα/ Lβ and Lα/ Lγ intensity ratios have been measured for some elements with atomic range 57⩽ Z⩽92 by using characteristic L X-rays from targets excited by 59.54 keV photons from a filtered radioisotope 241Am point source. Theoretical values of the Lα/ Lℓ, Lα/ Lβ and Lα/ Lγ intensity ratios were calculated using theoretically tabulated values of subshell photoionization cross-sections, fluorescence yields, fractional X-ray emission rates, Coster–Kronig transition probabilities. Experimental results have been compared with the theoretical values and other available experimental results. Good agreement was observed between experimental results, other available experimental results and theoretically calculated values.
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