电子激发氪原子广义振子强度的理论研究  

Theoretical Study of Generalized Oscillator Strength for Electronimpact Excitation of Kkrypton

作　　者：张穗萌[1] 陈长进[2] 

机构地区：[1]中国科学技术大学近代物理系 [2]安徽大学物理系

出　　处：《安徽大学学报（自然科学版）》1998年第2期35-40,共6页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金;安徽省教委资助

摘　　要：在研究带电粒子与原子的非弹性散射中，原子的广义振子强度（ＧＯＳ）是一个重要的角色．最近，Ｔａｋａｙａｎａｇｉ等人通过非弹性散射中电子能损谱的测量得到了氪（Ｋｒ）原子在４ｐ６→４ｐ５（２Ｐ１／２）５ｓ和４ｐ６→４ｐ５（２Ｐ３／２）５ｓ转换过程中的ＧＯＳ．我们用相对论Ｓｌａｔｅｒ定域密度方程得到的波函数计算了该过程在动量平方转移从０．０１到１０（原子单位）范围内的ＧＯＳ．所得结果对Ｔａｋａｙａｎａｇｉ等人的实验给出了较圆满的理论解释．The generalized oscillator strength (GOS) of an atom plays the key rolein the process of inelastic collisions of charged particles with atoms. Recently, Takayagi et al have obtained the GOS for the excitation ofatomic krypton to the 4p5(2P1/2)5s and 4p5(2P3/2)5s states from inelasticscattering measurements using electronenergyloss spectroscopy. To examine the GOS for electronkrypton collision in thesquaredmomentumtransfer in the range of 0.01 to 10 atomic units, calculations have been done by use of relativistic Slater localdensitypotential equation. It has been found that the present results give an excellent agreement with the experimental measurement of Takayanagi et al .

关 键 词：非弹性碰撞 电子激发 氪原子 广义 振子强度 

分 类 号：O562.4[理学—原子与分子物理]