科研之友
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摘要
Ternary fission yields in the reaction Pu-241(n(th), f) are calculated using a new model which assumes a nucleation-time-moderated chemical equilibrium in the low-density matter which constitutes the neck region of the scissioning system. The temperature, density, proton fraction, and fission time required to fit the experimental data are derived and discussed. A reasonably good fit to the experimental data is obtained. This model provides a natural explanation for the observed yields of heavier isotopes relative to those of the lighter isotopes, the observation of low proton yields relative to H-2 and H-3 yields, and the nonobservation of He-3, all features which are shared by similar thermal neutron-induced and spontaneous fissioning systems.
- 出版日期2014-7-8
