| 引用本文: | 邢静如,王尚武.用三维非线性Langevin方程计算裂变碎片质量分布.[J].国防科技大学学报,1995,17(4):104-110.[点击复制] |
| Xing Jingru,Wang Shangwu.Using 3-Dimension Non-Linear Langevin Equation To Calculate the Mass Distribution of Fission Fragments[J].Journal of National University of Defense Technology,1995,17(4):104-110[点击复制] |
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| 用三维非线性Langevin方程计算裂变碎片质量分布 |
| 邢静如, 王尚武 |
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(国防科技大学 应用物理系 湖南 长沙 410073)
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| 摘要: |
| 采用扩散模型，利用{c,h,a}三参数描述核形状，建立了三维非线性Langevin 方程。用M—C方法模拟了核的形变运动，计算了处于高激发态的198Hg, 21OPo 和185Re 核的裂变碎片质量分布。给出了裂变碎片的平均质量、均方差及最可几值等物理量。计算结果与实验值定性-致。 |
| 关键词: 核裂变 扩散模型 非线性朗之万方程 |
| DOI： |
| 投稿日期：1994-12-24 |
| 基金项目:国家自然科学基金资助项目 |
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| Using 3-Dimension Non-Linear Langevin Equation To Calculate the Mass Distribution of Fission Fragments |
| Xing Jingru, Wang Shangwu |
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(Department of Applied Physics)
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| Abstract: |
| In this paper，using diffusion model and {c，h，α} three parameters，we describe nuclear deformation and set up a three-dimension nonlinear Langevin equation. The nuclear deformation motion is simulated with M-C method. The fission fragment mass distributions of highly excited nuclei 198Hg, 21OPo and185Re are calculated，the mean mass，root mean square of the mass variance and the most probable values of the fission fragments are given. The calculated results are in agreement with experimental results qualitatively. |
| Keywords: nuclear fissions,diffusion model,nonlinear Langevin equation |
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