In the present work, the experimental L_i (i = 1–3) sub-shell fluorescence (ω₁, ω₂, ω₃) and Coster–Kronig (f₁₂, f₁₃, f₂₃) yields for W and Re have been deduced from synchrotron radiation induced X-ray line intensities measured at different incident energies across the L_i absorption edge energies of both the elements employing two sets of photoionization cross sections based on the non-relativistic Hartree–Fock–Slater model and the self-consistent Dirac–Hartree–Fock model. These deduced yields have been compared with the Dirac–Hartree–Slater model based theoretical values, the semi-empirical values tabulated by Krause and the recommended values tabulated by Campbell. The present investigation provided reliable experimental evidence indicating the onset of intense L₁–L₃M₅ Coster–Kronig transition at Z = 75.

中文翻译：

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通过测量W和Re的荧光和Coster-Kronig产量，在Z = 75时发生L1-L3M5转变的实验证据

在目前的工作中，实验大号_我（我= 1-3）子壳荧光（ω ₁，ω ₂，ω ₃）和科斯特-克朗尼希（˚F ₁₂，˚F ₁₃，˚F ₂₃）的收益率W和重新具有由同步加速器辐射引起的X射线线强度推导得出，该强度是在L _i上不同入射能量下测得的基于非相对论性Hartree-Fock-Slater模型和自洽Dirac-Hartree-Fock模型，采用两组光电离截面的两种元素的吸收边缘能。这些推论得出的收益已与基于Dirac–Hartree–Slater模型的理论值，由Krause列出的半经验值和由Campbell列出的推荐值进行了比较。本研究提供了可靠的实验证据，表明Z = 75时发生了强烈的L ₁ -L ₃ M ₅ Coster-Kronig过渡。