Charge radii and magnetic moments of odd- A 183-189Pb isotopes

Seliverstov, M. D.; Andreyev, A. N.; Barré, Nicole; Barzakh, A. E.; Dean, Sheldon W.; Witte, H. De; Fedorov, D. V.; Fedoseyev, V. N.; Fraile, L. M.; Franchoo, S.; Genevey, J.; Huber, G.; Huyse, M.; Köster, U.; Kunz, P.; Lesher, S. R.; Marsh, B. A.; Mukha, I.; Roussière, B.; Sauvage, J.; Stefanescu, I.; Vel, K. Van de; Duppen, P. Van; Volkov, Yu. M.

doi:10.1140/epja/i2009-10817-3

Cited by 62 publications

(37 citation statements)

References 39 publications

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“…No γ-ray has been seen coincident with the 5727 and 5764 keV α particles. These two γ-rays were also observed in our 185 Tl The hyperfine spectra corresponding to the 13/2 and 3/2 states of the neutron-deficient Pb nuclei are very different and well identified [12,39]. The intensity variations of the α lines with the laser beam frequency have provided the hyperfine spectra shown in fig.…”

Section: Resultssupporting

confidence: 68%

“…In recent years, the deformation evolution of the neutron-deficient 182−190 Pb nuclei was investigated by in-source laser spectroscopy. The changes in nuclear charge radius and the nuclear-moment values have already been published [11,12]. These results have shown that the Pb nuclei in their isomeric and ground states keep a quasi-spherical shape even far from the valley of stability.…”

Section: Introductionmentioning

confidence: 69%

“…The Tl atoms are surface ionized in the hot cavity whereas the Pb atoms are selectively photo-ionized in a three-step resonant process using the Resonance Ionization Laser Ion Source, RILIS [36,37], of the ISOLDE facility. To ionize the lead atoms the laser beam wave length was: for the first excitation step, λ = 283.3 nm, for the second excitation step, λ = 600.2 nm and for the ionization step, λ = 511 and 578 nm [11,12]. The lead ions extracted by a 60 kV high voltage were mass-separated and then guided to a counting station.…”

Section: Methodsmentioning

confidence: 99%

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Decay of 185Tl, 185m+gHg, 189m+gPb and energy location of the 13/2+ isomeric states in 185Hg, 189Pb, 193Po and 197Rn

et al. 2013

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Section: Resultssupporting

confidence: 68%

Section: Introductionmentioning

confidence: 69%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Decay of 185Tl, 185m+gHg, 189m+gPb and energy location of the 13/2+ isomeric states in 185Hg, 189Pb, 193Po and 197Rn

et al. 2013

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“…Following the series of experiments on the study of nuclear spins and electromagnetic moments of Cu isotopes [56,[78][79][80] the in-source RIS collaboration has performed extensive laser and nuclear-spectroscopic studies of isotopes in the lead region, namely the Tl [81], Pb [70,[82][83][84], Hg [45], Bi [85], Po [43,77,86,87], At and Au chains [22,88]. Our recent activity in this field has revisited the neutron-deficient Au and Hg isotopes, which were first studied at ISOLDE approximately four decades ago: the very first optical spectroscopy experiments performed at an ISOL facility [89][90][91][92].…”

Section: In-source Rismentioning

confidence: 99%

Ion beam production and study of radioactive isotopes with the laser ion source at ISOLDE

Fedosseev

Wendt

Rothe

et al. 2017

J. Phys. G: Nucl. Part. Phys.

123

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Ion beam production and study of radioactive isotopes with the laser ion source at ISOLDE At ISOLDE the majority of radioactive ion beams are produced using the resonance ionization laser ion source (RILIS). This ion source is based on resonant excitation of atomic transitions by wavelength tunable laser radiation.Since its installation at the ISOLDE facility in 1994, the RILIS laser setup has been developed into a versatile remotely operated laser system comprising state-of-the-art solid state and dye lasers capable of generating multiple high quality laser beams at any wavelength in the range of 210-950 nm. A continuous programme of atomic ionization scheme development at CERN and at other laboratories has gradually increased the number of RILIS-ionized elements. At present, isotopes of 40 different elements have been selectively laser-ionized by the ISOLDE RILIS. Studies related to the optimization of the laser-atom interaction environment have yielded new laser ion source types: the laser ion source and trap and the versatile arc discharge and laser ion source. Depending on the specific experimental requirements for beam purity or versatility to switch between different ionization mechanisms, these may offer a favourable alternative to the standard hot metal cavity configuration. In addition to its main purpose of ion beam production, the RILIS is used for laser spectroscopy of radioisotopes. In an ongoing experimental campaign the isotope shifts and hyperfine structure of long isotopic chains have been measured by the extremely sensitive in-source laser spectroscopy method. The studies performed in the lead region were focused on nuclear deformation and Made open access 7 August 2017Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.shape coexistence effects around the closed proton shell Z = 82. The paper describes the functional principles of the RILIS, the current status of the laser system and demonstrated capabilities for the production of different ion beams including the high-resolution studies of short-lived isotopes and other applications of RILIS lasers for ISOLDE experiments.

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“…These phenomena are manifested, among other observables, by the large odd-even staggering in the charge radii [6]. More recently, the studies in the long chain of the lead (Z = 82) isotopes revealed that these nuclei remain essentially spherical in their ground states down to N = 102 [7,8] despite the presence of low-lying states with different shapes [3].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic moments of odd-APo193–203,211isotopes

Seliverstov¹,

Cocolios²,

Dexters³

et al. 2014

Phys. Rev. C

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Hyperfine splitting parameters have been measured for the neutron-deficient odd-mass polonium isotopes and isomers [193][194][195][196][197][198][199][200][201][202][203] Po g,m , 209,211 Po. The measurement was performed at the ISOLDE (CERN) online mass separator using the in-source resonance ionization spectroscopy technique. The magnetic dipole moments μ and spectroscopic electric quadrupole moments Q S have been deduced. Their implication for the understanding of nuclear structure in the vicinity of the closed proton shell at Z = 82 and the neutron mid-shell at N = 104 is discussed. For the most neutron-deficient nuclei (A = 193,195,197), a deviation of μ and Q S from the nearly constant values for heavier polonium nuclei was observed. Particle-plus-rotor calculations with static oblate deformation describe the electromagnetic moments for these nuclei well, provided a gradual increase of a mean deformation when going to lighter masses is assumed for the polonium nuclei with A<198.

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Charge radii and magnetic moments of odd- A 183-189Pb isotopes

Cited by 62 publications

References 39 publications

Decay of 185Tl, 185m+gHg, 189m+gPb and energy location of the 13/2+ isomeric states in 185Hg, 189Pb, 193Po and 197Rn

Decay of 185Tl, 185m+gHg, 189m+gPb and energy location of the 13/2+ isomeric states in 185Hg, 189Pb, 193Po and 197Rn

Ion beam production and study of radioactive isotopes with the laser ion source at ISOLDE

Electromagnetic moments of odd-APo193–203,211isotopes

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