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  • 35.80. +s  (2)
  • 31.30.G  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Nuclear radii of thorium isotopes from laser spectroscopy of stored ions (1989)
    Springer
    The European physical journal 334 (1989), S. 103-108 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.F ; 21.60 ; 27.90 ; 29.90 ; 31.30.G ; 32.50.F ; 32.80.K ; 35.10.F ; 35.80 ; 42.60.K
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Isotope shifts and hyperfine splittings in optical transitions for atomic ions of the thorium isotopes227Th to230Th and232Th have been measured by laser spectroscopy on stored ions. From the isotope shift data, changes of the mean square charge radii are determined. A continuous increase of the charge radius with mass numberA is observed, in agreement with droplet model calculations. The results indicate that the odd-even staggering for Th is different from that one of the neighbouring isotones of Fr and Ra. There is some empirical evidence from systematics for an inversion of the staggering and the appearance of an octupole deformation atN ≦137. The hyperfine splitting for229Th for 3 electronic levels is given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294392
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Charge radii and moments of strontium nuclei by laser spectroscopy (1987)
    Springer
    The European physical journal 326 (1987), S. 493-500 
    Details
    ISSN: 1434-601X
    Keywords: 21.10.Ft ; 21.10.Ky ; 27.50. +e ; 27.60.+j ; 35.10.Fk ; 35.80. +s ; 25.55.−e
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The isotope shifts and hyperfine splittings for 11 strontium isotopes (A=80–90) and two isomers for the optical transition λ=293.2 nm were measured. The magnetic dipole and electric quadrupole moments and the changes of the mean square charge radii are derived. The results are discussed with respect to the increasing nuclear deformation and the anomalous coupling scheme of light Sr nuclei.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01289554
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A test of the accuracy of atomic-beam laser spectroscopy (1987)
    Springer
    The European physical journal 7 (1987), S. 113-118 
    Details
    ISSN: 1434-6079
    Keywords: 07.65.Eh ; 35.80. +s ; 35.10.Fk
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract To determine the accuracy to which hyperfine splittings can be measured using a cw dye laser with rf sideband tuning, a series of atomic beam experiments with59Co was performed. One hyperfine splitting of the first excited metastable atomic state was measured and compared with the results for the same splitting from magnetic rf resonance experiments. The uncertainty with the methods applied was found to be about 0.05 to 1% of the experimental linewidth in general; it is ±20 kHz or ±0.05% of the linewidth in the present Co experiment. The hyperfine splitting constants of the 3d 8 4p 2 F 7/2 state were found to beA=419.3(9) MHz,B=−77(17) MHz.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01384574
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    Paper (German National Licenses)
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