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  • 1990-1994  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Particle evaporation from hot nuclei withA ≦85 mainly prior to scission (1992)
    Springer
    The European physical journal 344 (1992), S. 259-267 
    Details
    ISSN: 1434-601X
    Keywords: 25.70.Gh ; 25.70.Jj ; 25.85.Ge
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report on measurements of fusion-fission fragments and evaporation residues from the reaction58Ni +27Al at 835 MeV incident energy leading to compound nucleiA ≦ 85 with high excitation energies. In the case of fission the mass dependence of the velocity widths of separated fragments indicate that the evaporation of light particles predominantly occurs from the composite nucleus prior to scission. The fraction evaporated from the fully separated fragments after scission can be estimated to approximately 20%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01303019
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Limiting excitation energies in fusion evaporation reactions (1993)
    Springer
    The European physical journal 347 (1993), S. 135-143 
    Details
    ISSN: 1434-601X
    Keywords: 25.70.Gh ; 25.70.Jj ; 25.70.Mn
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The mass dependence of the critical excitation energy above which a hot nucleus does not decay any more by particle evaporation, has been studied in the mass range 75≦A≦130. The experimental values of the critical excitation energy have been obtained by means of a new integral method based on the analysis of the widths of the evaporation residue mass distributions as a function of the residue velocity. The obtained mass dependence appears to be stronger than expected by various models and a predicted dependence on theZ/A ratio of the decaying nucleus seems to be confirmed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01284680
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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