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Evaporation residue formation competing with the fission process in the197Au+16O,12C reactions and fission barriers at a specifiedJ window

  • Heavy Ions, Fission
  • Published:
Zeitschrift für Physik A Atomic Nuclei

Abstract

Evaporation-residue excitation functions for16O and12C+197Au reactions were measured by means of the activation technique. The competition between evaporation and fission of the compound nuclei was studied by comparing the observed evaporation-residue data with the published fission excitation functions. A newly devised analysis was applied in order to deduce a fission barrier height at a specified angular momentum and determine the relevant fissioning nucleus as well. We found the fission barriers to be 8.2 MeV for the211Fr nucleus at 16ħ and 8.2 MeV for the207At nucleus at 27ħ.

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Author notes

  1. M. Shoji

    Present address: Mitsui Mining and Smelting Co. Ltd., Hibi, Tamano, 706, Okayama, Japan

Authors and Affiliations

  1. Japan Atomic Energy Research Institute, Tokai, Naka, Ibaraki, Japan

    S. Baba, K. Hata, S. Ichikawa, T. Sekine & Y. Nagame

  2. Department of Chemistry and Laboratory of Nuclear Studies, Faculty of Science, Osaka University, Toyonaka, Osaka, Japan

    A. Yokoyama, M. Shoji, T. Saito, N. Takahashi & H. Baba

  3. School of Economics, Otemon Gakuin University, Ibaraki, Osaka, Japan

    I. Fujiwara

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Baba, S., Hata, K., Ichikawa, S. et al. Evaporation residue formation competing with the fission process in the197Au+16O,12C reactions and fission barriers at a specifiedJ window. Z. Physik A - Atomic Nuclei 331, 53–62 (1988). https://doi.org/10.1007/BF01289430

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  • DOI: https://doi.org/10.1007/BF01289430

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