ANALYSIS OF 4 TIMES IONIZED CESIUM (CS-V)

The spectrum of cesium was photographed in the 300-1240 angstrom regio n on a 3-m normal incidence spectrograph. The source used was a trigge red spark. The 5S(2)5p2-(5s5p4 + 5s(2)5p(2)5d + 5s(2)5p(2)6s) transiti on array of Cs V spectrum was analysed. All levels of the ground state configuration 5s(2)5p3 and all but two levels out of a possible 44 le vels of the three even parity excited configurations have been establi shed. One hundred and forty-two lines have been classified in this spe ctrum. Least squares fitted parametric calculations involving configur ation interactions have been carried out to interpret the observed spe ctrum.