Analysis of the 4d9–(4d86p + 4p54d10) transitions of Sb VII and the strongest transitions of the 4d9–4d84f array of Sb VII and Te VIII

Abstract

The spectra of antimony and tellurium were photographed in the 100–200 Å region on grazing incidence spectrographs at Moscow, Russia and NIST, USA laboratories. The 4d9 −[4d86p + 4p54d10] transition array of Sb VII was analyzed. 31 levels in Sb VII were established. 41 new lines in Sb VII belonging to the 4d9 −(4p5 4d10 + 4d86p) transition array have been classified. Seven lines each in Sb VII and Te VIII belonging to the 4d9 −4d84f transition array have been classified. Parametric least-squares-fitted calculations involving configuration interaction have been carried out to interpret the spectrum satisfactorily.