Hyperfine structure and isotope shift investigations in202–222Rn for the study of nuclear structure beyond Z=82

Borchers, W.; Neugart, R.; Otten, E.‐W.; Duong, H. T.; Ulm, G.; Wendt, Κ.

doi:10.1007/bf02072676

Cited by 67 publications

(20 citation statements)

References 10 publications

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“…The lack of current data in heavier even-Z nuclei down to similar neutron numbers makes definitive statements difficult. However, the trend observed in the Rn [2,11] seems to indicate a comparable effect with the onset of collectivity occurring at higher masses.…”

Section: Introductionmentioning

confidence: 75%

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Nuclear moments and charge radii of neutron-deficient francium isotopes and isomers

et al. 2015

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Collinear laser fluorescence spectroscopy has been performed on the ground and isomeric states of 204,206 Fr in order to determine their spins, nuclear moments, and changes in mean-squared charge radii. A new experimental technique has been developed as part of this work which much enhances the data collection rate while maintaining the high resolution. This has permitted the extension of this study to the two isomeric states in each nucleus. The investigation of nuclear g factors and mean-squared charge radii indicates that the neutron-deficient Fr isotopes lie in a transitional region from spherical towards more collective structures.

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Section: Introductionmentioning

confidence: 75%

“…In the vicinity of the Z = 82, N = 126 shell closures, laser spectroscopy work using a variety of techniques has been applied [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Nuclear moments and charge radii of neutron-deficient francium isotopes and isomers

et al. 2015

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“…14. Mean-square charge radii of the francium (circle) isotopes [54] presented alongside the radon (diamond) isotopes [60]. The dashed lines represent the prediction of the droplet model for given isodeformation [57].…”

Section: B Interpretation Of the Nuclear G Factorsmentioning

confidence: 99%

Decay-Assisted Laser Spectroscopy of Neutron-Deficient Francium

et al. 2014

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This paper reports on the hyperfine-structure and radioactive-decay studies of the neutron-deficient francium isotopes [202][203][204][205][206] Fr performed with the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at the ISOLDE facility, CERN. The high resolution innate to collinear laser spectroscopy is combined with the high efficiency of ion detection to provide a highly sensitive technique to probe the hyperfine structure of exotic isotopes. The technique of decay-assisted laser spectroscopy is presented, whereby the isomeric ion beam is deflected to a decay-spectroscopy station for alpha-decay tagging of the hyperfine components. Here, we present the first hyperfine-structure measurements of the neutron-deficient francium isotopes [202][203][204][205][206] Fr, in addition to the identification of the low-lying states of 202;204 Fr performed at the CRIS experiment.

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“…An upper limit of only 1% for the EC/β + decay to 205 Rn was established earlier [10]. Borchers et al [11] have measured the ground state I π =…”

Section: Fig 1 (A)mentioning

confidence: 84%

Structures ofPo201andRn205from EC/
Deo
¹
,
Podolyák
²
,
Walker
³

et al. 2010
Phys. Rev. C
10
0
9
0
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Fr and 201 At, respectively, using γ -ray and conversion electron spectroscopy at the CERN isotope separator on-line (ISOLDE) facility. The EC/β + branch from 205 Fr was measured to be 1.5(2)%. The excited states of the daughter nuclei are understood in terms of the odd nucleon coupling to the neighboring even-even core. The neutron single-particle energies of the p 3/2 orbital relative to the f 5/2 ground state in 205 Rn, and the f 5/2 orbital relative to the p 3/2 ground state in 201 Po, were determined to be 31.4(2) and 5.7(3) keV, respectively. We tentatively identify a − levels is also discussed.

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Hyperfine structure and isotope shift investigations in202–222Rn for the study of nuclear structure beyond Z=82

Cited by 67 publications

References 10 publications

Nuclear moments and charge radii of neutron-deficient francium isotopes and isomers

Nuclear moments and charge radii of neutron-deficient francium isotopes and isomers

Decay-Assisted Laser Spectroscopy of Neutron-Deficient Francium

Structures ofPo201andRn205from EC/
Deo
¹
,
Podolyák
²
,
Walker
³

et al. 2010
Phys. Rev. C
10
0
9
0
View full text Add to dashboard Cite

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Hyperfine structure and isotope shift investigations in202–222Rn for the study of nuclear structure beyond Z=82

Cited by 67 publications

References 10 publications

Nuclear moments and charge radii of neutron-deficient francium isotopes and isomers

Nuclear moments and charge radii of neutron-deficient francium isotopes and isomers

Decay-Assisted Laser Spectroscopy of Neutron-Deficient Francium

Structures ofPo201andRn205from EC/Deo1, Podolyák2, Walker3 et al. 2010Phys. Rev. C10090View full textAdd to dashboardCite

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Structures ofPo201andRn205from EC/
Deo
¹
,
Podolyák
²
,
Walker
³

et al. 2010
Phys. Rev. C
10
0
9
0
View full text Add to dashboard Cite