Spectrum and energy levels of triply ionized ytterbium

Spectra of Yb IV produced with a low voltage sliding spark discharge were photographed in the range of 700 to 2200 A with a 10.7 m normal incidence spectrograph. Wavelengths for 944 spectral lines identified as Yb IV were measured. Of these, 535 were classified as transitions between 95 even and 51...

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Veröffentlicht in:	J. Res. Natl. Bur. Stand.; (United States) 1978-01, Vol.83 (3), p.233-245
Hauptverfasser:	Sugar, J., Kaufman, V., Spector, N.
Format:	Artikel
Sprache:	eng
Schlagworte:	640302 - Atomic, Molecular & Chemical Physics- Atomic & Molecular Properties & Theory ATOMIC AND MOLECULAR PHYSICS ATOMIC IONS CHARGED PARTICLES DATA FORMS EMISSION SPECTRA ENERGY-LEVEL TRANSITIONS IONS LEAST SQUARE FIT MAXIMUM-LIKELIHOOD FIT MULTICHARGED IONS NUMERICAL SOLUTION Physics and Chemistry RESONANCE SPECTRA TABLES WAVELENGTHS YTTERBIUM IONS
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Beschreibung
Zusammenfassung:	Spectra of Yb IV produced with a low voltage sliding spark discharge were photographed in the range of 700 to 2200 A with a 10.7 m normal incidence spectrograph. Wavelengths for 944 spectral lines identified as Yb IV were measured. Of these, 535 were classified as transitions between 95 even and 51 odd energy levels of the 4f/sup 13/, 4f/sup 12/5d, 4f/sup 12/6s, and 4f/sup 12/6p configurations. Values for the interaction parameters were derived by a least squares fit to the known levels.
ISSN:	0160-1741 2376-5259
DOI:	10.6028/jres.083.014