Investigations of the hyperfine structure and isotope shifts in the even-parity level system of atomic europium
| Autor: | Sebastian Wilman, Marcin Suski, Bogusław Furmann, Danuta Stefańska, Maciej Chomski |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Radiation
Gas-discharge lamp Materials science 010504 meteorology & atmospheric sciences Isotope chemistry.chemical_element 01 natural sciences Atomic and Molecular Physics and Optics law.invention Wavelength chemistry law Atom Atomic physics Laser-induced fluorescence Spectroscopy Europium Hyperfine structure 0105 earth and related environmental sciences |
| Zdroj: | Journal of Quantitative Spectroscopy and Radiative Transfer. 251:107070 |
| ISSN: | 0022-4073 |
| DOI: | 10.1016/j.jqsrt.2020.107070 |
| Popis: | This work presents the measurements of the hyperfine structure constants A and B, as well as the isotope shifts, for 26 electronic levels belonging to the even-parity configurations at the energy range 28000–40000 cm − 1 in the europium atom. The measurements were performed with the use of laser spectroscopy with a hollow cathode discharge lamp as the source of the atoms and the detection of laser induced fluorescence. Among the results obtained, 10 levels were measured for the first time, in the case of another 3 levels results somewhat more precise than the earlier published ones were obtained. The A and B hyperfine structure constants’ values were determined on the basis of the measurements on 73 spectral lines located in two wavelength ranges: 480–560 nm and 625–680 nm. |
| Databáze: | OpenAIRE |
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