Environmental effects on Multiplet Structure of Mg Kα X-Ray Satellites

Abstract

The spectra of Kα X-rays produced by 1 to 3–MeV/amu H, He, O, Ne and S ion bombardment of magnesium and some of its compounds have been measured with a curved crystal spectrometer. The energies and intensities of the multiplets belonging to the first three Kα satellite groups are compared with the results of Hartree-Fock calculations. The influence of chemical environment on the Kα3/Kα4, Kα5/Kα6 , and Kα5/Kα7 intensity ratios is examined, and a strong dependence of the Kα3/Kα4 intensity ratio on projectile atomic number is observed.

KX-ray Spectra of Sodium Excited by Heavy Charged Particles

“…It is interesting to note that the K C ~~, ~~/ K O L J intensity ratios in these two spectra are nearly the same. This was also found to be the case for the excitation of Mg by ions having 2 > 2 in a previous investigation [23] .…”

K x-ray satellite spectrum of Al by photon excitation

“…They have studied the KL 1 group satellites in Mg, Al, Si and their respective oxides and observed a positive shift in the energies of the lines, and an increase in their relative intensities from the metal to its oxide. In their measurements of KL 2 multiplet relative intensities in Mg and MgO, employing ion excitation, Watson et al [5] observed the same behaviour.…”

Energies and relative intensities of Kα3 and Kα4 x‐ray satellites of sulfur and sulfides by photon excitation

“…Coming to K˛4 ,3 0 /K˛3 intensity ratio, the value for the two sulfides is found to be higher compared to the value for sulfur (Table 3). Such significantly higher values of this intensity ratio are reported in the case of Mg, 6,7 Al, 8,9 Si 10,11 and P 11 compounds also. As has already been stated, 1s 1 2p 1 3 P !…”

“…In a study of K˛4/K˛3 intensity ratio of magnesium in the element and some of its compounds by ion excitation, Watson et al 6 found that K˛4/K˛3 intensity ratio is significantly higher in the compounds compared to that in the metal. A similar trend was reported by a study of this ratio in magnesium and its oxides 7 by photon excitation, aluminium and its oxides by electron excitation by Bonnelle and Senemaud 8 and by Suresh et al 9 by photon excitation.…”

“…Following the procedure set by Demekhin and Sachenko 14 and later followed by Watson et al, 6 we too have calculated the K˛4 ,3 0 /K˛3 intensity ratio for the two extreme cases. The generally accepted K˛L 1 multiplet transitions, their initial state vacancy configurations, excitation probabilities and partial fluorescence yields for the K˛L 1 multiplet transitions of sulfur are furnished in Table 4.…”