Databases of L-shell X-ray intensity ratios for various elements after photon excitation

In this study, a comprehensive dataset of X-ray emission intensity ratios has been compiled, including $I_{L\beta }/I_{L\alpha }$, $I_{L\gamma }/I_{L\alpha }$, $I_{\text{Ll}}/I_{L\alpha }$, $I_{L\gamma }/I_{L\beta }$, $I_{\text{Ll}}/I_{L\gamma }$, $I_{\text{Ll}}/I_{L\beta }$, $I_{L\gamma 5}/I_{L\alpha }$, $I_{L\gamma 44{}^{\prime }}/I_{L\alpha }$, $I_{L\eta }/I_{L\alpha }$, and $I_{L\gamma 1}/I_{L\alpha }$, extracted from literature spanning the years 1971 to 2023, and encompassing 83 research papers. Over this timeframe, a total of 2600 values were collected, comprising some 678 values for $I_{L\beta }/I_{L\alpha }$, 696 values for $I_{L\gamma }/I_{L\alpha }$, 617 values for $I_{\text{Ll}}/I_{L\alpha }$, along with 132, 132, 89, 60, 70, 71, and 55 data points for $I_{L\gamma }/I_{L\beta }$,$I_{\text{Ll}}/I_{L\gamma }$, $I_{\text{Ll}}/I_{L\beta }$, $I_{L\gamma 5}/I_{L\alpha }$, $I_{L\gamma 44{}^{\prime }}/I_{L\alpha }$, $I_{L\eta }/I_{L\alpha }$, and $I_{L\gamma 1}/I_{L\alpha }$, respectively. The reported values are presented with precision up to three to four decimal places, accompanied by their associated uncertainties. Additionally, the tables include calculated weighted averages ${\left(I_{Li}/I_{Lj}\right)}_W$, uncertainty values (${\epsilon }_{ISD}$, ${\epsilon }_{ESD}$), combined standard deviations ($z_{ISD}$, $z_{ESD}$), and average z-scores (${\overline{z}}_{ISD},{\overline{z}}_{ESD}$) for these intensity ratios. The data encompasses elements ranging from ₃₉Y to ₉₄Pu when excited by photon bombardment. The assessment of how these experimental data values are distributed according to atomic number indicates extensive coverage across most elements. However, a few isolated instances were identified where either no data or fewer than two data values were available.