Lifetime Measurements in La II with the Beam-Laser Method
- 1 July 1977
- journal article
- Published by IOP Publishing in Physica Scripta
- Vol. 16 (1-2) , 31-34
- https://doi.org/10.1088/0031-8949/16/1-2/004
Abstract
Cascade-free lifetime measurements of the y 3 F 2 3 4 0, the z 1 D 2 0 and the z 3 D 1 2 3 0 levels in La II have been made with the beam-laser technique. Our results, together with other recent lifetime measurements in La II, are compared with lifetimes inferred from transition probabilities measured by Corliss and Bozman (CB). An energy-dependent correction factor to the CB lifetimes is found, indicating a misjudgement of the effective temperature in Corliss' and Bozman's arc. A new value of the La solar photosphere abundance based on six transitions in La II, is presented.Keywords
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