Study the effect of crystal structure on radiative vacancy transfer probabilities from L3 to Mi, Ni and Oi subshells

Measurement of L subshell fluorescence yield ratios of some high Z elements by selective excitation method

“…Consequently, the Coster-Kronig transition probabilities would modify the intensities of L X-ray photons. For such situations, the expressions for L X-ray intensities are given by Equations 12 in Equations (17), (19) and (20), the L subshell fluorescence yield ratios (ω 2 /ω 3, ω 1 /ω 3 , ω 1 /ω 2) have been determined and they are given in Table 3. The derivation of L subshell fluorescence yield ratios (ω 2 /ω 3, ω 1 /ω 3, ω 1 /ω 2 ) from intensity ratios mainly come from L α , L β , L γ groups.…”

“…The L β group originates from vacancies in L 3 , L 2 and L 1 subshell, and L γ group originates from vacancies in L 2 and L 1 subshell. The intensities of L α L β , L γ are used to determine the L subshell fluorescence yield ratios (ω 2 /ω 3, ω 1 /ω 3, ω 1 /ω 2 ) in accordance with Equations (17), (19) and (20). In Table 3, and ratios of L subshell fluorescence yield (ω 2 /ω 3, ω 1 /ω 3, ω 1 /ω 2 ) are 2.4-3.4% and 4-7%, respectively.…”

“…Besides, many investigators have also studied the effect of solid-state environment and chemical environment on L X-ray intensity ratios and fluorescence yield using various techniques. [20][21][22] It is interesting to note that, in all these experiments, the intensity of incident photon, I o , has been measured accurately in order to determine L subshell fluorescence yield and L X-ray intensity ratios. In the present experiment, we have shown that the ratios of L subshell fluorescence yield and the L X-ray intensity ratios of Hf, Ta and Re can be determined by adopting selective excitation method without measuring the intensity of incident photon, I o .…”

“…Besides, many investigators have also studied the effect of solid‐state environment and chemical environment on L X‐ray intensity ratios and fluorescence yield using various techniques. [ 20–22 ]…”