Elsevier

Nuclear Physics A

Volume 419, Issue 2, 7 May 1984, Pages 295-307
Nuclear Physics A

Fission barriers of preactinide nuclei from electrofission experiments

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Abstract

Absolute electrofission cross sections for 182,184,186W, natPt, and 209Bi have been measured using solid-state track detectors and parallel-plate avalanche counters for the detection of the fission fragments. The measured cross sections — together with others known from literature — have been analyzed within an extended statistical model to deduce fission barriers and compared with theoretical calculations. From the derived barrier height for platinum, it is concluded that the pairing strength G most likely does not change with deformation (G = const). All experimental fission barriers agree very well with theoretical predictions for G = const.

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Supported by the Deutsche Forschungsgemeinschaft.

∗∗

Excerpt from thesis (D26).

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