Fragments' mass and energy characteristics in the spontaneous fission of 236Pu, 238Pu, 240Pu, 242Pu, and 244Pu
Luca DemattèCEC, JRC, Institute for Reference Materials and Measurements, B-2440 Geel, BelgiumC. WagemansDept. of Subatomic and Radiation Physics, University of Gent, Proeftuinstraat 86, B-9000 Gent, BelgiumRamón S. BarthelemyCEC, JRC, Institute for Reference Materials and Measurements, B-2440 Geel, BelgiumP. D’hondtStudiecentrum voor Kernenergie, Boeretang 200, B-2400 Mol, BelgiumA.J. DeruytterCEC, JRC, Institute for Reference Materials and Measurements, B-2440 Geel, Belgium
1997en
ABI
Annotatsiya
The results of a systematic study of the mass and energy of fission fragments emitted in the spontaneous fission of 236,238,240,242,244Pu are reported. A comparison of the fragments' mass and energy distributions demonstrates the occurrence of different fission modes with varying relative probability. These results are discussed in terms of the random neck rupture model as well as in terms of the scission point model, showing the influence of the neutron number of the fissioning system. Finally an improved method of analysis allows the investigation of the cold fission region.
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