Ss. Churilov et al., REVISED AND EXTENDED ANALYSES OF I-IX AND I-X, Journal of the Optical Society of America. B, Optical physics, 15(7), 1998, pp. 1923-1931
Iodine spectra were photographed in the 104-260-Angstrom region with a
triggered spark source. I IX and I X spectra were investigated. In th
e I IX spectrum earlier results [J. Opt. Sec. Am. 70, 1344 (1979)] wer
e confirmed, except that the 4d(8)(S-1(0))P-2(3/2) level, 1 additional
level in the 4d(8)5p configuration, 33 levels belonging to the 4d(8)4
f configuration, and 2 levels of the 4p(5)4d(10) configuration were es
tablished. Fifty-five additional lines were classified in the I nr spe
ctrum. In the I X spectrum the earlier values of P-3(0) and S-1(0) of
the ground configuration 4d(8) and four levels of the odd-parity confi
gurations [J. Opt. Sec. Am. B 14, 1013 (1997)] were rejected. P-3(0) a
nd S-1(0) of the ground-state configuration and five new levels of the
odd-parity configurations were established. Sixteen new lines were cl
assified in the I X spectrum. Hartree-Fock calculations with relativis
tic corrections and least-squares fit parametric calculations were car
ried out for both spectra for interpretation of the observed energy-le
vel schemes. (C) 1998 Optical Society of America.