We have measured the X-ray production cross sections (XRPCS) for the L_p (p = l, α, η, β_1,3,4,6, β_2,15, γ_1,5, γ_2,3,4) emission lines of Sn and Sb using synchrotron induced mono-chromatic radiation tuned across their respective L_i (i = 1–3) sub-shell absorption edges covering the range 4.0 keV–5.0 keV. These measured XRPCS have been compared with the corresponding values calculated using the non-relativistic Hartree-Fock-Slater model based L_i (i = 1–3) photoionization cross-sections, the Dirac-Fock model based X-ray emission rates and three sets of fluorescence and Coster-Kronig (CK) yields based on the Dirac-Hartree-Slater model, the semi-empirical values tabulated by Krause and recently reported experimental values. The present measured L_p XRPCS for both Sn and Sb at different investigated photon energies are found to be in good agreement with those calculated using the experimental photoionization cross sections, fluorescence and CK yields. Further, a good agreement observed between the present measured and calculated branching ratios for both Sn and Sb indicates the reliability of the Dirac-Fock model based X-ray emission rates. The Lp XRPCS and intensity ratios for Sn and Sb calculated using the experimental photoionization cross sections, the DF model based X-ray emission rates and the experimental fluorescence and CK yields are recommended for use in different applications.

中文翻译：

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Sn 和 Sb 在能量跨越其 Li (i = 1–3) 吸收边缘的同步辐射诱导的 L 系列 X 射线的实验生产横截面

我们测量了 L _p ( p  = l, α, η, β _1,3,4,6 , β _2,15 , γ _1,5 , γ _{2,3, 4}）使用在其各自的大号调谐同步加速器诱导单色辐射的Sn和Sb的发射线_我（我 = 1-3）子壳层吸收边缘覆盖范围4.0千电子伏，5.0千电子伏。这些测得的XRPCS已经使用非相对论哈特里-福克-斯莱特基于模型的计算L对应的值进行比较_我（我 = 1–3) 光电离截面，基于 Dirac-Fock 模型的 X 射线发射率和基于 Dirac-Hartree-Slater 模型的三组荧光和 Coster-Kronig (CK) 产率，表中的半经验值由克劳斯和最近报告的实验值。目前测得的 L _p发现在不同研究光子能量下 Sn 和 Sb 的 XRPCS 与使用实验光电离截面、荧光和 CK 产率计算的结果非常一致。此外，在目前测量的和计算的 Sn 和 Sb 的分支比之间观察到的良好一致性表明基于 Dirac-Fock 模型的 X 射线发射率的可靠性。建议将使用实验光电离截面、基于 DF 模型的 X 射线发射率以及实验荧光和 CK 产率计算的 Sn 和 Sb 的 Lp XRPCS 和强度比用于不同的应用。