Measurements of 2s22pn-2s2pn+1transitions in krypton xxviii and xxix ions

Abstract

We report measurements of the 2$s^2$2$p^n$-2s2$p^{n+1\mathrm{}}$ transitions in the ions Kr x x v i i i and Kr x x i x, fluorinelike and oxygenlike krypton. The measured line positions are used to determine fine-structure intervals in the ground-state configurations of these ions. The results are compared with semiempirical and Dirac-Fock calculations.