Optical isotope shifts and nuclear deformation in dysprosium

Dekker, J.W.M.; Klinkenberg, P.F.A.; Langkemper, J.F.

doi:10.1016/0031-8914(68)90092-x

Cited by 32 publications

(7 citation statements)

References 18 publications

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“…With these IS values a (7). These values agree with those given in [14], except for the isotope X63Dy, which has a somewhat larger relative FS.…”

Section: Separation Of E(fects B)supporting

confidence: 89%

“…In the present work, the separation of MS and FS was carried out by means of a King plot using as reference line the Dy I line 5547.27 • measured by Dekker et al [7]. It belongs to a transition 4f1~176 which is expected to have a negligibly small specific mass shift (SMS) [14]" O" YSM SAA'=(0''~'0.5) 6Y~r~' s (NMS=normal mass shift).…”

Section: Discussionmentioning

confidence: 99%

“…The mean square error of the fit is chosen in the usual way: (A)=(~A{/(n-m)) U2, where A i is the i difference between the observed and the calculated value, n the number of equations, and m the number of free parameters. The evaluated IS between pure configurations can be compared with the results from the DyI spectrum [7].…”

Section: Relativistic Effectsmentioning

confidence: 99%

“…Wyart's calculations of this mixing can be checked by means of isotope shift (IS) measurements which should reflect the configuration mixing (see, e.g., [5,6]). The IS of six lines in the Dy I spectrum was measured accurately by Dekker et al [7] in 1968. Up to now there exist three studies on the IS in the Dy II spectrum, i.e.…”

Section: Introductionmentioning

confidence: 99%

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Isotope shift and configuration mixing in dysprosium II

Aufmuth

1978

Z Physik A

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The isotope shift in the spark spectrum of dysprosium was studied by means of a photoelectric recording Fabry-Perot spectrometer with digital data output. For 29 lines the isotope shift of 162Dy and t64Dy was measured in order to check the mixing of the three configurations 4f95d6s, 4f95d 2, and 4fl~ calculated by Wyart. By means of the sharing rule the configuration mixing could be confirmed as a whole. In the ground state configuration the influence of relativistic effects was demonstrated and explained by theory. The order of magnitude of crossed-second-order effects contributing to the isotope shift of 4fl~ 6/and 41 could be estimated. In three lines the isotope shift of all stable Dy isotopes was measured. Mass shift and field shift were separated by comparison with results obtained in the arc spectrum.

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“…With these IS values a (7). These values agree with those given in [14], except for the isotope X63Dy, which has a somewhat larger relative FS.…”

Section: Separation Of E(fects B)supporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Relativistic Effectsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Isotope shift and configuration mixing in dysprosium II

Aufmuth

1978

Z Physik A

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“…Another check on our IS values is through the conventional King plot analysis [29] (Chapter 6). As a reference transition in the King plots, we used the 597.4 nm transition in Dy I, for which ISs have been measured [34,35] at a high accuracy (~2 MHz). Both fits were excellent straight lines (see Figure 3).…”

Section: Discussionmentioning

confidence: 99%

Hyperfine Structure and Isotope Shifts in Dy II

Papa

Holt

Rosner

2017

Atoms

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Using fast-ion-beam laser-fluorescence spectroscopy (FIBLAS), we have measured the hyperfine structure (hfs) of 14 levels and an additional four transitions in Dy II and the isotope shifts (IS) of 12 transitions in the wavelength range of 422-460 nm. These are the first precision measurements of this kind in Dy II. Along with hfs and IS, new undocumented transitions were discovered within 3 GHz of the targeted transitions. These atomic data are essential for astrophysical studies of chemical abundances, allowing correction for saturation and the effects of blended lines. Lanthanide abundances are important in diffusion modeling of stellar interiors, and in the mechanisms and history of nucleosynthesis in the universe. Hfs and IS also play an important role in the classification of energy levels, and provide a benchmark for theoretical atomic structure calculations.

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New Developments of Classical Optical Spectroscopy

Heilig

Steudel

1978

Progress in Atomic Spectroscopy

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Optical isotope shifts and nuclear deformation in dysprosium

Cited by 32 publications

References 18 publications

Isotope shift and configuration mixing in dysprosium II

Isotope shift and configuration mixing in dysprosium II

Hyperfine Structure and Isotope Shifts in Dy II

New Developments of Classical Optical Spectroscopy

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