Coincidence studies of the influence of resonances on simultaneous ionization-excitation of helium by electron impact

被引：14
|
作者：
Dogan, M [1 ]
Crowe, A
机构：
[1] Kocatepe, Fac Sci, Dept Phys, Afyon, Turkey
[2] Newcastle Univ, Dept Phys, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2002年 / 35卷 / 12期
关键词：
D O I：
10.1088/0953-4075/35/12/312
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The electron-photon coincidence/correlation methods have been used to study the influence of the 3lnl' autoionizing states in helium on simultaneous ionization-excitation to the He+(2p) state. Measured He+(2p) double differential cross sections as a function of outgoing electron energy (at a fixed angle of 5) show clear evidence of these states. Similarly, observed differences in the anisotropies of electron-photon angular correlations for this excited ion state may be due to contributions from these indirect ionization processes.
引用
收藏
页码：2773 / 2781
页数：9
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