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Atoms 2017, 5(1), 10; doi:10.3390/atoms5010010

The Role of the Hyperfine Structure for the Determination of Improved Level Energies of Ta II, Pr II and La II

Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, A-8010 Graz, Austria
Academic Editor: Joseph Reader
Received: 19 January 2017 / Revised: 14 February 2017 / Accepted: 21 February 2017 / Published: 28 February 2017
(This article belongs to the Special Issue Spectra of Ionized Atoms: From Laboratory to Space)
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For the determination of improved energy levels of ionic spectra of elements with large values of nuclear magnetic dipole moment (and eventually large values of nuclear quadrupole moments), it is necessary to determine the center of gravity of spectral lines from resolved hyperfine structure patterns appearing in highly resolved spectra. This is demonstrated on spectral lines of Ta II, Pr II and La II. Blend situations (different transitions with accidentally nearly the same wave number difference between the combining levels) must also be considered. View Full-Text
Keywords: energy levels; Ta II; Pr II; La II energy levels; Ta II; Pr II; La II

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Windholz, L. The Role of the Hyperfine Structure for the Determination of Improved Level Energies of Ta II, Pr II and La II. Atoms 2017, 5, 10.

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