Calculations of relativistic configuration interaction for Kα X-ray satellites of phosphorus ions

In this paper, transition wavelengths, transition probabilities, absorption oscillator strengths and line strengths for Kα X-rays from P VI to P XIV have been calculated using the multi-configuration Dirac–Fock and relativistic configuration interaction methods. The contributions of the Breit interaction, self-energy and vacuum polarization corrections have been considered in the calculation. The present data are in good agreement with some previous experimental and theoretical values. The data of P VI to P XIV have been ascertained to be reliable by using the ratio of the velocity to length gauge of the transition rate ( A L / A V ).