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Open AccessArticle

New Energy Levels and Transitions of 5s25p2 (6d+7s) Configurations in Xe IV

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Centro de Investigaciones Opticas (CIOp), CC 3, 1897, Gonnet, 1900 La Plata, Argentina
2
School of Electrical and Computer Engineering, University of Campinas (UNICAMP), 13083-970 Campinas, SP, Brazil
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Author to whom correspondence should be addressed.
Atoms 2019, 7(4), 108; https://doi.org/10.3390/atoms7040108
Received: 17 October 2019 / Revised: 9 December 2019 / Accepted: 11 December 2019 / Published: 17 December 2019
Three-times ionized xenon Xe IV spectrum in the 1070–6400 Å region was analyzed using a pulsed discharge light source. A set of 163 transitions was classified for the first time, and 36 new energy levels belonging to the 5s25p26d and 5s25p27s even configurations were determined. The relativistic Hartree–Fock method, including core-polarization effects, were used. In these calculations, the electrostatic parameters were optimized by a least-square procedure in order to improve the adjustment to experimental energy levels. We also present a calculation based on a relativistic multiconfigurational Dirac–Fock approach. View Full-Text
Keywords: atomic databases and related topics; astrophysical and laboratory plasmas: atomic data needs; atomic lifetime and oscillator strength determination atomic databases and related topics; astrophysical and laboratory plasmas: atomic data needs; atomic lifetime and oscillator strength determination
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Reyna Almandos, J.; Raineri, M.; Pagan, C.J.B.; Gallardo, M. New Energy Levels and Transitions of 5s25p2 (6d+7s) Configurations in Xe IV. Atoms 2019, 7, 108.

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