X-ray relative intensities at incident photon energies across the LiLi (i=1–3i=1–3) absorption edges of elements with 35≤Z≤9235≤Z≤92

•The L X-ray relative intensities and Lα1 XRP cross sections are evaluated using physical parameters based on the IPA models.•Comparison of the intensity ratios evaluated using the DHS and DF models based photoionization cross sections is presented.•Importance of many body effects including electron exchange effects is highlighted.

The intensity ratios, ILk/ILα1ILk/ILα1 (k=l,η,α2,β1,β2,15,β3,β4,β5,7,β6,β9,10,γ1,5,γ6,8,γ2,3,γ4k=l,η,α2,β1,β2,15,β3,β4,β5,7,β6,β9,10,γ1,5,γ6,8,γ2,3,γ4) and ILj/ILαILj/ILα (j=β,γj=β,γ), have been evaluated at incident photon energies across the LiLi (i=1–3i=1–3) absorption edge energies of all the elements with 35≤Z≤9235≤Z≤92. Use is made of what are currently considered to be more reliable theoretical data sets of different physical parameters, namely, the LiLi (i=1–3i=1–3) sub-shell photoionization cross sections based on the relativistic Hartree–Fock–Slater (RHFS) model, the X-ray emission rates based on the Dirac–Fock model, and the fluorescence and Coster–Kronig yields based on the Dirac–Hartree–Slater model. In addition, the Lα1Lα1 X-ray production cross sections for different elements at various incident photon energies have been tabulated so as to facilitate the evaluation of production cross sections for different resolved LL X-ray components from the tabulated intensity ratios. Further, to assist evaluation of the prominent (Li−SjLi−Sj) (Sj=MjSj=Mj, NjNj and i=1–3i=1–3, j=1–7j=1–7) resonant Raman scattered (RRS) peak energies for an element at a given incident photon energy (below the LiLi sub-shell absorption edge), the neutral-atom electron binding energies based on the relaxed orbital RHFS calculations are also listed so as to enable identification of the RRS peaks, which can overlap with the fluorescent X-ray lines.