【摘 要】
：
在统计模型的框架内研究了In核在三维空间的转动自由度对 1 0 .6和8.5MeV/u84Kr+ 2 7Al碰撞裂变前粒子发射的影响 .发现对后一个轰击能 ,断前粒子发射不敏感于转动自由度 ;对
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在统计模型的框架内研究了In核在三维空间的转动自由度对 1 0 .6和8.5MeV/u84Kr+ 2 7Al碰撞裂变前粒子发射的影响 .发现对后一个轰击能 ,断前粒子发射不敏感于转动自由度 ;对前一个能量 ,转动自由度的引入使提取的裂变延迟时间从 2 0× 1 0 - 2 1s减少到 7.5× 1 0 - 2 1s,表明了它对裂变前粒子蒸发的影响 ,计算结果也表明仅有转动自由度并不能完全解释In核的断前粒子增强发射现象 .发现了转动自由度在粒子发射中所起的作用对系统的激发能有一定的依赖关系 .
In the framework of the statistical model, the effect of the rotational degree of freedom of In core in three-dimensional space on the emission of particles before the collision of 1.06 and 8.5 MeV / u84Kr + 2 7 Al was investigated. And the degree of freedom of rotation is reduced. The introduction of the previous energy and rotational degree of freedom reduces the extraction fission delay time from 20 × 10 2 s to 7.5 × 10 2 s -1, indicating its influence on the pre-fission particle evaporation The calculated results also show that only the rotational degree of freedom can not fully explain the phenomenon of enhanced nucleation before the nuclei of In nuclei. It is found that the rotational degree of freedom plays a certain role in the excitation of the system in the particle emission.
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