Unresolved transition arrays

J. Bauche; C. Bauche-Arnoult; M. Klapisch

doi:10.1088/0031-8949/37/5/002

Unresolved transition arrays

J. Bauche
, C. Bauche-Arnoult
, M. Klapisch

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

Because of the low resolution of the soft-X-ray spectra emitted by hot plasmas, the model of Unresolved Transition Arrays is a convenient tool for their interpretation. Compact formulae have been obtained for the first and second order moments of the weighted distribution of the line wavenumbers of any array in intermediate coupling, giving the average wavenumber and the width of the array. In supplement, many properties of the arrays are presented, e.g., the preferential deexcitation, the statistics of levels and lines, and the effect of configuration mixing.

Original language	English
Pages (from-to)	659-663
Number of pages	5
Journal	Physica Scripta
Volume	37
Issue number	5
DOIs	https://doi.org/10.1088/0031-8949/37/5/002
State	Published - 1 May 1988

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10.1088/0031-8949/37/5/002

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AB - Because of the low resolution of the soft-X-ray spectra emitted by hot plasmas, the model of Unresolved Transition Arrays is a convenient tool for their interpretation. Compact formulae have been obtained for the first and second order moments of the weighted distribution of the line wavenumbers of any array in intermediate coupling, giving the average wavenumber and the width of the array. In supplement, many properties of the arrays are presented, e.g., the preferential deexcitation, the statistics of levels and lines, and the effect of configuration mixing.

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Unresolved transition arrays

Abstract

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