Revised and extended analysis of Cd IV

Abstract

The spectrum of cadmium was photographed in the region 500–2100 Å using a 10.7 m normal incidence spectrograph and a 6.65 m normal incidence spectrograph. The sources used were a triggered spark and a sliding spark. The earlier analysis has been revised and extended. All levels of the 4d85s and 4d85p configurations have been determined. Parametric level fitting calculations support the analysis. Three hundred and seventeen lines have been classified in this spectrum of which 209 are new lines.