Spectator electron effects on the two-electron one-photon radiative transition process of double K hole state of Xe$^{q+}$ ion($47\!\leq\!q\!\leq\!52$)

TL;DR

This study calculates and analyzes the effects of spectator electrons on the radiative transition spectra of double K hole states in highly charged xenon ions, providing theoretical predictions aligned with experimental data.

Contribution

It introduces a comprehensive multi-configuration Dirac-Hartree-Fock approach to evaluate spectator electron effects on transition spectra of Xe ions with detailed electron correlation and relativistic effects.

Findings

Spectator electrons significantly influence transition energies and probabilities.

Theoretical spectra match well with existing experimental data.

Predicted spectra can aid in high-energy X-ray analysis from ion-surface interactions.

Abstract

The double electron E1 transition energies, probabilities, and oscillator strengths between the $2s2p^{n}$ and $1s^{2}2p^{n-1}$($1\!\leq\!n\leq\!6$) configurations of Xe$^{q+}$($47\!\leq\!q\leq\!52$) ions with different spectator electrons have been calculated based on the multi-configuration Dirac-Hartree-Fock method. A reasonable electron correlation model is constructed with the aid of the active space method. The finite mass of nuclear, Breit interaction and QED effects have also been included. The calculated results are in good agreement with the available data. The theoretical spectra of different spectator electrons of the double K hole state have been predicted. The spectator electron effects on the transition spectra have been analyzed in detail. The present results will be helpful for analyzing the high energy X-ray spectrum observed from the interaction between high energy highly charged ions and the surface.