A Method to Deal With the Heavy Ion Induced Fission Based on Diffusion Model

• 来源期刊: 原子核物理：英文版
• 学科: 物理学
• 关键词: Smoluchoswki equation Generalized COHERENT state ANSATZ FISSION rate Semibounded region OVERSHOOTING
• 年，卷（期）: 1995,（4）
• 页码范围: 305-311
• 页数: 7页
• 分类号: O4

摘要

【正】 The fission rate of ²⁴⁰Pu at its saddle point is obtained by using generalized coherentstate ansatz for large friction case. The numerical results indicate that the quasi-stationary fiss-ion rate approaches Kramers’ rate and the transient behaviour agrees with that given in previousstudies. Moreover, the relationship between the first eigenvalue λ₁ and the quasi-stationary fiss-ion rate λ_qs is derived. In the case of high temperature, we also pay attention to the overshoot-ing.