The spectrum of iodine was photographed in the 100–260 Å region on a variety of spectrographs with a triggered spark source. The energy-level structure of the 4d8, 4d7(5p+4f ), and 4p54d9 configurations of I X was investigated. All nine levels of the 4d8 ground configuration and 130 of 328 levels of three odd configurations have been established. Three hundred lines were classified. Hartree–Fock and least-square-fitted parametric calculations were carried out to interpret the observed spectrum.
© 1997 Optical Society of America
[Optical Society of America ]
R. R. Gayasov, S. S. Churilov, Y. N. Joshi, A. N. Ryabtsev, and V. I. Azarov, "Interpretation of the level structure of the 4d8, 4d7 (5p+4f), and 4p54d9 configurations of the nine-times ionized iodine spectrum (I X)," J. Opt. Soc. Am. B 14, 1013-1028 (1997)