Lifetime Measurements in CR1 by Laser Excitation from Metastable States

Details Lifetime Measurements in CR1 by Laser Excitation from Metastable States Lifetime Measurements in CR1 by Laser Excitation from Metastable States

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...103..108k&link_type=abstract

Astronomy and Astrophysics, Vol.103, P. 108, 1981

Astronomy and Astrophysics

Astrophysics

6

Scientific paper

A combination of collisional and laser excitation was used to measure radiative lifetimes in Cr I. By a discharge an atomic beam of metastable atoms in the 3d54s a5S, a5G, b5D, a3I, b1I and 3d44s2a5D terms was produced. Spatially separated from the place of collisional excitation laser radiation selectively populated levels belonging to the 3d54p z5P, y5P, U5F, U5D, x3I, y1I, 3d55pz5G and 3d44s4px5G terms. Time-resolved observation of the re-emitted resonance fluorescence yielded the lifetimes of 28 levels. The values are compared with other experimental and theoretical results.

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