Abstract

New radiative lifetime measurements based on time-resolved laser-induced fluorescence are reported for 57 odd-parity and 9 even-parity levels of Ni i, ranging in energy from 29 000 to 57 000 cm⁻¹. Our lifetimes agree with earlier measurements based on laser-induced fluorescence but are much more extensive than earlier laser measurements. These lifetimes are found to agree with the recent critical compilation of atomic transition probabilities from the U.S. National Bureau of Standards [ J. Phys. Chem. Ref. Data 17, Suppl. 4 ( 1988)]. These lifetimes are also compared with lifetimes derived from the highly accurate (±0.7%) relative oscillator strengths measured by the Oxford group [ Mon. Not. R. Astron. Soc. 236, 235 ( 1989)]. Our lifetimes provide an improved (±2%) absolute scale for the Oxford measurements.

© 1993 Optical Society of America

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