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

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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.
Original languageEnglish
Number of pages14
Issue number10
Publication statusPublished - 28 Feb 2017

Fields of Expertise

  • Sonstiges

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