Classifications of the resonance lines of europium III
Journal Article
·
· Astrophys. J., v. 184, no. 2, pp. 671-674
OSTI ID:4344014
A first analysis of Eu III by Russell et al, in 1941 yielded classifications of seven lines (2350-2523 A) as transitions from the 4f/sup 78/S/ sup 0//sub 7,2/ ground level to upper levels identified only as belo nging to the 4f/sup 6/ 5d configuration. We have diagonalized a truncated energy matrix for 4f/sup 6/(/sup 7/F)5d, using parameter values appropriate for Eu III. Compar ison of the results with available data for the lines allows identifications of the seven experimental upper levels. These show that the seven lines include the three lines of the basic 4f/sup 7/ /sup 8/S/sup 0/-4f/sup 6/(/sup 7/ F)5d /sup 8/ P multiplet, the strongest resonance lines of Eu III, and account for most of the oscillator strength of the 4f/sup 7/ /sup 8/S/sup o/-4f/sup 6/ 5d group. (auth)
- Research Organization:
- National Bureau of Standards, Washington, D.C.
- NSA Number:
- NSA-29-021858
- OSTI ID:
- 4344014
- Journal Information:
- Astrophys. J., v. 184, no. 2, pp. 671-674, Journal Name: Astrophys. J., v. 184, no. 2, pp. 671-674; ISSN ASJOA
- Country of Publication:
- United States
- Language:
- English
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