The effect of a 2s vacancy on two-electron-one-photon lines: Relativistic approach

Energies and rates for two-electron-one-photon transitions and their satellites have been calculated using multiconfiguration Dirac-Fock method for a number of atoms having nuclear charges within Z=12-20. In addition, the energies and transition rates of the Kα hypersatellite lines have been computed for these atoms. From these rates, the branching ratios between the Kα hypersatellite and two electron one photon lines are evaluated and compared with existing experimental and theoretical results.