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

Abstract

In this study, a comprehensive dataset of X-ray emission intensity ratios has been compiled, including ILβ/ILα, ILγ/ILα, ILl/ILα, ILγ/ILβ, ILl/ILγ, ILl/ILβ, ILγ5/ILα, ILγ44′/ILα, ILη/ILα, and ILγ1/ILα, 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 ILβ/ILα, 696 values for ILγ/ILα, 617 values for ILl/ILα, along with 132, 132, 89, 60, 70, 71, and 55 data points for ILγ/ILβ,ILl/ILγ, ILl/ILβ, ILγ5/ILα, ILγ44′/ILα, ILη/ILα, and ILγ1/ILα, 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 (ILi/ILj)W, uncertainty values (εISD, εESD), combined standard deviations (zISD, zESD), and average z-scores (z¯ISD,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.