摘要
在Smoluchowski方程的框架内 ,研究了同位旋对轻裂变同量异位素源110 Tc ,110 Pd ,110 In和同位素源110 ,117,12 4In裂变前粒子发射的影响 .计算结果表明 :断前粒子发射对裂变源的同位旋有很强的依赖性 ,随着同位旋的增加 ,中子发射增强 ,而轻带电粒子则减弱 ;对一个高同位旋的系统 ,质子和α粒子不适合作为提取核耗散强度的实验观测量 ;
The isospin effect of particle emission for fissioning isobaric sources 110 Tc, 110Pd, 110In and for isotopic sources of 110,117,124 In were investigated within the framework of the Smoluchowski equation. Calculations show that the emission of prescission particles depends strongly on the isospin of the fission sources; With increasing isospin, neutron emission increases, but proton and α particle emission decrease; When a fissioning source has a larger isospin, light-charged particle emission is insensitive to the dissipation strength, indicating that for a light compound system with a high isospin, the multiplicity of proton and α particle is not a useful observable of extracting the magnitude of dissipation; The trend of various light particle emission with the isospin of fissioning systems is unrelated to the dissipation strength.
出处
《高能物理与核物理》
CSCD
北大核心
2004年第1期73-77,共5页
High Energy Physics and Nuclear Physics
基金
东南大学优秀青年教师教学科研资助计划资助~~
