| 曲率能及压缩能对缺中子裂变系统断前中子发射的影响 |
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| 引用本文： | 毛英臣,顾柏平. 曲率能及压缩能对缺中子裂变系统断前中子发射的影响[J]. 中国物理 C, 2007, 31(3): 258-263 |
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| 作者姓名： | 毛英臣 顾柏平 |
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| 作者单位： | [1]南京大学物理系,南京210008 [2]南京中医药大学数理系,南京210029 |
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| 摘 要： | 用改进了的动力学与统计相结合的模型, 研究了曲率能及压缩能对,4,个缺中子裂变系统: 188Pt, 200Pb, 213Fr和224Th的断前中子发射的影响. 计算结果显示用改进模型得到的断前中子多重性相比原来模型的低估要更靠近实验数据. 对于目前工作考虑压缩能的原因进行了讨论.
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| 关 键 词： | 曲率能 压缩能 缺中子裂变系统 能级密度参数 断前中子多重性 |
| 收稿时间： | 2006-06-01 |
| 修稿时间： | 2006-06-012006-07-14 |
Influence of Curvature and Compressibility Energies upon Prescission Neutron Emission of Neutron-Deficient Fissioning Systems |
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| MAO Ying-Chen,GU Bai-Ping. Influence of Curvature and Compressibility Energies upon Prescission Neutron Emission of Neutron-Deficient Fissioning Systems[J]. High Energy Physics and Nuclear Physics, 2007, 31(3): 258-263 |
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| Authors: | MAO Ying-Chen GU Bai-Ping |
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| Affiliation: | 1.Department of Physics, Nanjing University, Nanjing 210008, China;2.Department of Mathematics and Physics, Nanjing University of TCM, Nanjing 210029, China |
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| Abstract: | The aim of this paper is to study the influence of the curvature and the compressibility energies on prescission neutron emission of four neutron-deficient systems: 188Pt, 200Pb, 213Fr and 224Th within a modified version of the combined dynamical statistical model. The calculated results show that prescission neutron multiplicities from the modified model are closer to the data compared with the underestimate of the original one. The physics that the compressibility energy needs to be considered in this work is discussed. |
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| Keywords: | curvature energy compressibility energy neutron-deficient fissioning system level-density parameter prescission neutron multiplicity |
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