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  • Articles: DFG German National Licenses  (2)
  • 25.70.Gh  (1)
  • 25.85.Ec  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Coulomb effects in low energy fission (1986)
    Springer
    The European physical journal 325 (1986), S. 357-362 
    Details
    ISSN: 1434-601X
    Keywords: 25.85.Ec
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The structures in the total kinetic energy (TKE) distributions in cold fission of234U and236U are interpreted in terms of the Coulomb interaction energy (C) between fragments at the scission point. The maximal value ofC, C max, corresponding to the most compact scission configuration, is calculated for several mass fragmentations. It is shown that withQ being constant,C max increases if one increases the charge asymmetry for a given primary fragmentation. This condition produces oscillations with a period of approximately 5 amu ofC max as a function of the light fragment mass which are correlated with the observed oscillations of the maximal value of TKE. Moreover, the enhancement of the yields of the more asymmetric charge fragmentation for a given fragmentation is explained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294620
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Mass and charge release by the evaporation of particles from compound nuclei around mass 60 (1992)
    Springer
    The European physical journal 342 (1992), S. 61-66 
    Details
    ISSN: 1434-601X
    Keywords: 24.60.Dr ; 25.55.-e ; 25.70.Gh
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Reaction product cross sections have been measured for reactions of4He projectile with54,56Fe,58Ni and59Co targets in the bombarding energy range 14–27 MeV. The cross-section-weighted average charge $$\overline {\Delta Z}$$ and mass $$\overline {\Delta A}$$ removed from the compound system were deduced and compared with results reported for heavy-ion induced reactions. Variation of $$\overline {\Delta A}$$ with E CN * is independent of the initial angular momentum of compound nucleus in theA=60 mass region in contrary to the rare-earth region. This would suggest a strong angular momentum removal from the compound nucleus by evaporation of particles forA≈60 nuclei. The average evaporated charge $$\overline {\Delta Z}$$ depends on both the CN excitation energy E CN * and the compound nucleusN andZ numbers. The $$\overline {\Delta A}$$ and $$\overline {\Delta Z}$$ dependence on excitation energy and the projectile-target combination can be understood in terms of the statistical model calculations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294489
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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