Study of fission dynamics in fusion-fission reactions

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• 作者：H. Eslamizadeh ; ^{m_eslamizadeh@yahoo.com} ; H. Raanaei
• 关键词：Fission ; Pre-scission particle multiplicity ; Nuclear viscosity
• 刊名：Annals of Nuclear Energy
• 出版年：2013
• 出版时间：January, 2013
• 年：2013
• 卷：51
• 期：Complete
• 页码：252-256
• 全文大小：473 K

文摘

One-dimensional Langevin equations were applied to study the fission dynamics of compound nucleus ²⁰⁰Pb formed in heavy ion-induced fusion reactions in an intermediate range of excitation energies. A modified wall and window dissipation with a reduction coefficient, k_s, has been used in the Langevin equations. The average pre-fission multiplicities of neutrons, light charged particles and fission probabilities were calculated for ²⁰⁰Pb and results compared with the experimental data. It was shown that the results of the calculations are in good agreement with the experimental data of neutron and charged particles (p and alphas) multiplicities and fission probabilities by using values of k_s in the range 0.27 ? k_s ? 0.48.