IONIZATION AND SIMULTANEOUS EXCITATION OF HELIUM-ATOMS BY ELECTRON-IMPACT

被引：41
|
作者：
RAEKER, A
BARTSCHAT, K
REID, RHG
机构：
[1] DRAKE UNIV,DEPT PHYS & ASTRON,DES MOINES,IA 50311
[2] QUEENS UNIV BELFAST,DEPT APPL MATH & THEORET PHYS,BELFAST BT7 1NN,ANTRIM,NORTH IRELAND
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1994年 / 27卷 / 14期
关键词：
D O I：
10.1088/0953-4075/27/14/043
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Total and single differential cross sections for electron impact ionization of helium are calculated within the R-matrix method. In addition to ionization of ground state atoms He (1s2) 1S, we consider the initial metastable states He (1s2s) 1S and He (1s2S) 3S for incident projectile energies ranging from threshold to 350 eV. Our calculations include the processes which leave the residual ion in an excited state He+ (nl) up to n = 3. The results are compared with experiments and other theoretical data.
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收藏
页码：3129 / 3138
页数：10
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