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  • 1
    Electronic Resource
    Electronic Resource
    r-Process nucleosynthesis of superheavy nuclei and nuclear mass tables (1976)
    [s.l.] : Nature Publishing Group
    Nature 261 (1976), S. 382-385 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] New predictions of nuclear masses and fission barriers indicate that it is not possible to form superheavy nuclei during r-process ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/261382a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Elastic scattering of16O and20Ne from235U (1976)
    Springer
    The European physical journal 277 (1976), S. 141-146 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The elastic scattering of 140-MeV16O and 175- and 252-MeV20Ne from235U has been measured. Experimental ratios of elastic to Rutherford scattering cross sections are analyzed in terms of both Fresnel scattering and optical models. The radius parameters derived from these analyses are found to be nearly independent of projectile energy. Total reaction cross sections are obtained and found to be in good agreement with the total fission cross section for these systems. Comparisons between the Fresnel theory and the optical model give generally good agreement. A simple formula which parameterizes the total reaction cross section in terms of the interaction radius is presented for16O and20Ne reactions.Nuclear Reactions:235U(16O,16O),E=140 MeV;235U(20Ne,20Ne),E=175 MeV, 252 MeV; measuredσ el; compared with Fresnel and optical models; deduced maximum angular momenta, interaction radii, total reaction cross section.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01433705
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Fragment angular distributions from fission of238U,209Bi and197Au by 140-MeV4He Ions (1975)
    Springer
    The European physical journal 274 (1975), S. 131-137 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The fission fragment angular distributions from reactions of 140-MeV4He ions with238U,209Bi and197Au have been studied. From the anisotropies in the angular distributions, values forℊ eff, the effective moment of inertia at the fission saddle point, have been estimated and compared with results obtained at lower bombarding energies. The derivation ofℊ eff values has included corrections for the effects of incomplete fusion mechanisms on the orbital angular momentum distribution of the fissioning nuclei and for neutron evaporation prior to fission. The results are also compared with heavy-ion-induced fission data for systems of similar fissility. Also, examination of the forward-backward symmetry of the238U angular distribution substantiates other results which show that the fraction of fission reactions which follow complete fusion of the target and projectile is less than 0.5 for 140-MeV4He-ion bombardment of238U.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01408465
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    Paper (German National Licenses)
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