Application of a two-step dynamical model to calculating properties of fusion-fission reactions |
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| Authors: | G I Kosenko F A Ivanyuk V V Pashkevich D V Dinner |
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| Institution: | (1) Omsk State University, pr. Mira 55A, Omsk, 644077, Russia;(2) Institute for Nuclear Research, National Academy of Sciences of Ukraine, pr. Nauki 47, 03680 Kyiv, Ukraine;(3) Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980, Russia |
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| Abstract: | The two-step model of fusion-fission reactions that was proposed previously by the present authors is extended in such a way as to describe the multiplicity of light particles emitted from nuclearfission fragments. Calculations are performed for the reaction induced by 48Ca + 244Pu collisions. The mass distribution of fragments, their mass-energy distribution, and the total multiplicity of neutrons and gamma rays are obtained for E lab = 230, 238, 249, and 255 MeV. It is shown that the model reproduces qualitatively relevant experimental data. In order to attain quantitative agreement, it is necessary to take into account the angular momentum carried away by particles from the nucleus undergoing fission and various types of gamma rays emitted by the nucleus and its fission fragments. |
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