Relativistically calculated K-shell level widths and fluorescence yields for atoms with 20$\le$Z$\le$30

TL;DR

This paper presents relativistic calculations of K-shell level widths and fluorescence yields for atoms with atomic numbers 20 to 30, using advanced multiconfiguration methods including QED corrections.

Contribution

It provides comprehensive relativistic calculations of K-shell parameters for mid-range atoms, incorporating Breit interaction and QED effects, which were not previously available.

Findings

Calculated K-shell widths and yields for Z=20 to 30

Included Breit interaction and QED corrections in calculations

Results improve accuracy of atomic data for these elements

Abstract

The $K$-shell level radiative, non-radiative, and total widths, $K$-shell fluorescence yields and $K$-shell hole state lifetimes for atoms with 20$\le$Z$\le$30 have been calculated in fully-relativistic way using the extensive multiconfiguration Dirac-Fock calculations with the inclusion of the Breit interaction and QED corrections and also using multiconfiguration Dirac-Hartree-Slater calculations.