能级密度对能修正参数对能谱的影响  

The effection of the correction parameter of nuclear level density in energy to energy spectra calculation

作　　者：孙建平[1] 陈武军[1] 张正军[1] 

机构地区：[1]西北大学物理学院,陕西西安710069

出　　处：《西北大学学报（自然科学版）》2015年第5期733-737,共5页Journal of Northwest University（Natural Science Edition）

基　　金：中国科学院战略研究计划基金资助项目(XDA02010100)

摘　　要：以激子模型和蒸发模型为基础的统计理论计算出的反应数据中,粒子出射能谱不连续。经过计算发现剩余核能级密度对能修正参数对粒子出射能谱形状有很大影响,通过调整能级密度对能修正参数可以消除这一问题。文中以n+78Kr核反应为例,分析了能级密度对能修正参数与能谱的关系,给出该反应中能级密度对能修正参数值。In the reaction data which were calculated by the statistical theory based on the exciton model and evaporation model,energy spectrum of particle emission were discontinuous. It could be found that the value of energy pair correction parameter has great influence on the shape of the particle emission spectra after calculation and this discontinuous problem could be eliminated by adjusting the pair correction parameter. The nuclear reaction of n ＋78Kr was taken as an example and the relationship analyzed between the energy pair correction of nuclear level density and the energy spectra. Moreover,the value of energy pair correction for this reaction was obtained.

关 键 词：中子反应数据计算 能谱 能级密度 能级密度对能修正参数 

分 类 号：O571.4[理学—粒子物理与原子核物理]