A study of the beam-foil spectrum produced by a 1MeV beam of antimony ions has yielded lifetimes for nine low-lying terms of Sb IV and six of Sb V. Decay-curve analysis incorporating the ANDC method to correct for cascade effects has given lifetimes for the upper state involved in the resonance transitions of both ions that are in reasonable agreement with most recent calculations. New energy-level assignments are given for the 5s5d 1D2,5s6d 1D2, and 5s4ƒ 1F3 levels of Sb IV and for the 6d 2D⅔,⅖ and 4ƒ 2F⅖,7/2 levels of Sb v.
© 1985 Optical Society of America
E. H. Pinnington, W. Ansbacher, J. A. Kernahan, R. N. Gosselin, J. L. Bahr, and A. S. Inamdar, "Energy-level and lifetime measurements for Sb IV and Sb v," J. Opt. Soc. Am. B 2, 1653-1657 (1985)