热等离子体中电子弹性散射的屏蔽效应  

PLASMA-SCREENING EFFECTS ON ELASTIC COLLISIONS IN HOT DENSE PLASMAS

作　　者：袁建奎[1] 孙永盛[2] 郑绍唐[2] 

机构地区：[1]中国工程物理研究院研究生部,北京8009信箱100088 [2]北京应用物理与计算数学研究所,北京8009信箱100088

出　　处：《计算物理》1996年第2期147-152,共6页Chinese Journal of Computational Physics

摘　　要：采用平均原子模型计算了 Ar,Fe 等离子体内电子的弹性散射微分截面。考虑了温度密度效应对微分截面的影响。结果表明,在低温低密度极限下,计算结果与可用的实验值及其它理论符合得很好,而在其它的温度密度范围内来自温度的影响比来自密度的影响更复杂,二者对电子弹性散射微分截面都产生很大影响。An average-atom(AA)model is employed to calculate differential cross sections for the e- lastic scattering of electrons from argon and iron plasmas.The results are in good agreement with other theoretical calculations and available experimental data in the low temperature and density limit.Numer- ical simulations show that the effect from temperature is more complicated than that from density,and differential cross sections change greatly with the condition of the plasma.

关 键 词：平均 原子模型 微分截面 等离子体 电子散射 

分 类 号：O562.5[理学—原子与分子物理]