Synchrotron radiation induced X‐ray production cross sections of ₆₆Dy at energies across its L_i (i = 1–3) subshell absorption edges

Abstract

) emission lines have been measured by tuning the incident synchrotron radiation at energies over the range 7.8-9.2 keV and 10-370 eV above the respective L i (i = 1-3) absorption edges. These measurements aim to check the reliability of the independent particle approximation models used to generate the theoretical data sets of different physical parameters required to calculate the XRP cross sections and also investigate the influence of many body effects on the photoionization process. The present measured Lγ 2,3 (originating from decay of the L 1 subshell vacancies) XRP cross sections are found to be significantly higher than different sets of theoretical values, whereas a good agreement is generally observed for the various other XRP cross sections and relative intensities.

Cascade Mi (i = 1–5) subshell X‐ray emission at incident photon energies across the Lj (j = 1–3) subshell absorption edges of 66Dy

“…It may be added that the areal densities of both, the multi‐elemental target (AXO DRESDEN, GmbH) and the DyF 3 target (Micromatter, USA) used in the present work, have been validated by X‐ray fluorescence measurements as described in our recent report …”

A study of the influence of chemical environment on the Li (i = 1–3) subshell X‐ray intensity ratios and the L3 absorption‐edge energy for some compounds of 66Dy using synchrotron radiation

“…In this code, different photo‐peaks can be fitted using the multi‐Gaussian function with the option of varying peak centroids, the FWHM as a function of energy and the background under the photo peak. The peak fitting for different L X ‐ray spectra were performed as explained in our recent references . Prior to determination of photo‐peak areas, the background spectrum from blank cellulose pellet recorded at the same incident photon energy normalized to the incident photon flux and live time was subtracted from similarly normalized L X ‐ray spectrum from different 66 Dy compounds to exclude the contribution of fluorescent peaks from impurity elements present in cellulose.…”