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Since the early fifties, bimodal fission was postulated and applied to the lighter actinides. However, for the heavier actinides like e.g. 235U, it did not give successful results and thus failed as a general description for fission throughout the whole actinide region.
In the mid eighties, the multi-modal random neck-rupture model over came this problem and has since then become the most powerful tool for the prediction of the fission fragment properties for heavy actinides from At to Md. Compared to other fission models not only qualitative but also quantitative predictions of the relevant fission fragment properties are possible. Hence, no wonder why this model is most commonly used by experimentalists.
The present paper gives a comparison to other models, shows recent improvements in the mode calculation and presents the application of multi-modal random neck-rupture model in several fission studies to several fissioning systems. .

Additional information

Authors: HAMBSCH F J, IRMM, Geel (BE)
Bibliographic Reference: Paper presented: VI International School-seminar on Heavy Ion Physics, Dubna (RU), September 22-27th, 1997
Availability: Available from DG XIII as Paper EN 40780 ORA
Record Number: 199910300 / Last updated on: 1999-03-12
Original language: en
Available languages: en