Radiative and Auger decay data for modelling nickel K lines

TL;DR

This paper provides detailed radiative and Auger decay data for nickel ions, essential for accurate modeling of nickel K lines across a wide ionization range, using advanced atomic structure calculations.

Contribution

It introduces comprehensive decay data for nickel ions from Ni$^+$ to Ni$^{27+}$ using Cowan's HFR method, including comparisons with other computational and experimental data.

Findings

Calculated level energies, transition wavelengths, and decay widths for nickel ions.

Good agreement with existing experimental and theoretical data.

Enhanced data set for modeling nickel K lines in various environments.

Abstract

Radiative and Auger decay data have been calculated for modelling the K lines in ions of the nickel isonuclear sequence, from Ni$^+$ up to Ni$^{27+}$. Level energies, transition wavelengths, radiative transition probabilities, and radiative and Auger widths have been determined using Cowan's Hartree--Fock with Relativistic corrections (HFR) method. Auger widths for the third-row ions (Ni$^+$--Ni$^{10+}$) have been computed using single-configuration average (SCA) compact formulae. Results are compared with data sets computed with the AUTOSTRUCTURE and MCDF atomic structure codes and with available experimental and theoretical values, mainly in highly ionized ions and in the solid state.