ENERGY-LEVEL SCHEME AND TRANSITION-PROBABILITIES OF S-LIKE IONS

Theoretical energy levels and transition probabilities are presented f or 47 low-lying levels of sulfur-like ions for all Z greater than or e qual to 18, The multiconfiguration Dirac-Fock technique is used to cal culate energy levels and wave functions. The Breit interaction and Lam b shift contributions are calculated perturbatively as corrections to the Dirac-Fock energy, The M1 and E2 transitions among the five levels of the ground-state configuration (3s(2) 3p(4)) and among four low-ly ing levels of the odd-parity configurations as well as the El transiti ons between excited and the ground levels are presented. (C) 1996 Acad emic Press, Inc.