Hyperfine structure measurements of neutral niobium with Fourier transform spectroscopy
Hochschule für Technik und Wirtschaft Berlin, Fachbereich 1, Wilhelminenhofstr. 75A, 12459 Berlin, Germany e-mail: email@example.com
2 Istanbul University, Faculty of Science, Physics Department, 34134 Vezneciler, Istanbul, Turkey
3 Laser Centre, The University of Latvia, Rainis Boulevard 19, 1586 Riga, Latvia
Accepted: 10 March 2010
Aims. We report on experimental studies of hyperfine structure splitting of neutral niobium.
Methods. We used high-resolution Fourier transform spectroscopy to record a spectrum of niobium produced with a hollow cathode discharge lamp in the range of wavenumbers from 10 000 cm-1 to 30 000 cm-1.
Results. The magnetic dipole hyperfine structure constants A were determined for the 109 levels of odd parity by analyzing the profiles of 224 spectral lines. The A values of 57 of these level are reported for the first time.
Key words: atomic data / methods: laboratory / techniques: spectroscopic / line: profiles
© ESO, 2010