Radiative lifetimes measured by time-resolved laser-induced fluorescence are reported for 40 odd-parity levels and 36 even-parity levels of singly ionized terbium. The odd-parity levels range in energy from 29 000 to 40 000 cm-1 and those of even-parity from 21 000 to 37 000 cm-1. These lifetimes, with one exception, are accurate to ±5%. They will provide an absolute scale for accurate atomic-transition probabilities in Tb ii (the second spectrum of terbium).
© 2001 Optical Society of America
(020.4900) Atomic and molecular physics : Oscillator strengths
(300.2530) Spectroscopy : Fluorescence, laser-induced
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6500) Spectroscopy : Spectroscopy, time-resolved
E. A. Den Hartog, J. A. Fedchak, and J. E. Lawler, "Radiative lifetimes of Tb II," J. Opt. Soc. Am. B 18, 861-865 (2001)