Recalibration of the Auger spectra of boron

Abstract

By using saddle-point technique, 12 autoionizing and two metastable autoionizing states of B III are calculated. To obtain high accuracy relativistic effects and mass polarization effect are included in the computation. Spin-orbit, spin---other-orbit, and spin-spin effects are also considered. Using the B IV $(1{s}^{2})^{1}S$ result of Pekeris the corresponding Auger energies are tabulated. These data are then used to recalibrate the reported boron electron spectra of R\o{}dbro, Bruch, and Bisgaard by about 0.15 eV. The calculated energies enable us to make seven new identifications in the boron Auger spectra. The fine-structure calculation also reveals many inverted $J$ levels among these core-excited states.