Using a Hypeac spectrometer, hyperfine structures of 70 lines of the Tm I spectrum have been measured. Energies, hyperfine splittings and J - values are deduced for 27 levels and 58 lines are classified. The hyperfine splitting of the ground-state is measured accurately : 8W = — 49.5 mK. A theoretical study permits a prediction of the energy and the hyperfine splitting of a level lying in the 4f13 6s 7s configuration.A l'aide d'un spectromètre Hypeac on a déterminé les structures hyperfines de 70 raies d'arc du thulium 169. On en a déduit les énergies, les écarts hyperfins et les valeurs de J de 27 niveaux, ce qui a permis de classer 58 raies. L'écart hyperfin du fondamental a été déterminé avec précision : δW = — 49,5 mK. Une étude théoriq...
A phenomenological study of the multiplet structures of the mixed odd-low configurations 5p5(6s, 7s,...
A high resolution study of the thorium 229 isotope, in the spectral range of 1 to 3 μ, has been made...
Un spectromètre photoélectrique Fabry-Pérot a été construit permettant l'enregistrement direct de la...
Using a Hypeac spectrometer, hyperfine structures of 70 lines of the Tm I spectrum have been measure...
© 2022 Elsevier LtdThe spectra emitted by a thulium hollow-cathode discharge lamp with argon or neon...
Nous avons mesuré par la technique des croisements de niveaux en champ nul (effet Hanle) la durée de...
The authors have measured the h.f.s. of 5 levels of the 5p5(6p + 7p) configurations, 1 level of the ...
International audienceWe recorded spectra of Ho ii emitted by hollow-cathode lamps, using the ultrav...
We report the first extensive measurements of hyperfine structure in Ta II. Spectra of Ta II were re...
The spectra emitted by a thulium hollow-cathode discharge lamp with argon or neon as inert gases hav...
We calculated hyperfine structure constants of the 5d6s(2), 5d(2)6s, 5d(3), 5d(2)7s, 5d6s7s, 5d6p(2)...
For the determination of improved energy levels of ionic spectra of elements with large values of nu...
The hyperfine structure of the lines corresponding to the transitions 6s6p - 6s7s and 6s6p - 6s7d of...
Results of systematic studies of the hyperfine structure of singly ionized praseodymium are presente...
Studies of the hyperfine structure and isotope shifts in 733.2 nm mixed (M1+E2) multipole line of Pb...
A phenomenological study of the multiplet structures of the mixed odd-low configurations 5p5(6s, 7s,...
A high resolution study of the thorium 229 isotope, in the spectral range of 1 to 3 μ, has been made...
Un spectromètre photoélectrique Fabry-Pérot a été construit permettant l'enregistrement direct de la...
Using a Hypeac spectrometer, hyperfine structures of 70 lines of the Tm I spectrum have been measure...
© 2022 Elsevier LtdThe spectra emitted by a thulium hollow-cathode discharge lamp with argon or neon...
Nous avons mesuré par la technique des croisements de niveaux en champ nul (effet Hanle) la durée de...
The authors have measured the h.f.s. of 5 levels of the 5p5(6p + 7p) configurations, 1 level of the ...
International audienceWe recorded spectra of Ho ii emitted by hollow-cathode lamps, using the ultrav...
We report the first extensive measurements of hyperfine structure in Ta II. Spectra of Ta II were re...
The spectra emitted by a thulium hollow-cathode discharge lamp with argon or neon as inert gases hav...
We calculated hyperfine structure constants of the 5d6s(2), 5d(2)6s, 5d(3), 5d(2)7s, 5d6s7s, 5d6p(2)...
For the determination of improved energy levels of ionic spectra of elements with large values of nu...
The hyperfine structure of the lines corresponding to the transitions 6s6p - 6s7s and 6s6p - 6s7d of...
Results of systematic studies of the hyperfine structure of singly ionized praseodymium are presente...
Studies of the hyperfine structure and isotope shifts in 733.2 nm mixed (M1+E2) multipole line of Pb...
A phenomenological study of the multiplet structures of the mixed odd-low configurations 5p5(6s, 7s,...
A high resolution study of the thorium 229 isotope, in the spectral range of 1 to 3 μ, has been made...
Un spectromètre photoélectrique Fabry-Pérot a été construit permettant l'enregistrement direct de la...