Analysis of the four lowest configurations of five times ionized cesium (Cs VI)

The spectrum of cesium was photographed in the 325-1400 Å region on 3-m and 10.7-m normal-incidence spectrographs using a triggered-spark source. Sixty-seven lines have been classified as transitions between levels of fivetimes ionized cesium. The analysis has determined all levels of the 5 s 2 5 p 2 ground configuration and all but the J = 4 level of the three lowest excited configurations, 5 s 5 p 3 , 5 s 2 5 p 5 d and 5 s 2 5 p 6 s . Multiconfiguration calculations were performed and least-squares fitted parameters are given.