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2014MNRAS.442..138S - Mon. Not. R. Astron. Soc., 442, 138-141 (2014/July-3)
Radiative lifetime measurements of some La I and La II levels by time-resolved laser spectroscopy.
SHANG X., TIAN Y., WANG Q., FAN S., BAI W. and DAI Z.
Abstract (from CDS):
Natural radiative lifetimes for 60 excited levels of La I and La II were measured using time-resolved laser-induced fluorescence spectroscopy in laser-induced plasma. The lifetimes of 40 excited levels of La I, in the energy range from 24 507.87 to 52 030.4/cm, and 20 levels of La II, from 26 414.01 to 56 035.70/cm, were measured in this work. The results of lifetimes range from 4.2 to 330 ns with the uncertainties within 10 percent. To our best knowledge, 34 lifetimes of La I and 17 lifetimes of La II are reported for the first time.
Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)
Journal keyword(s): atomic data - atomic processes - methods: laboratory: atomic - techniques spectroscopic
Simbad objects: 7
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