An improved calculation for the ionization-excitation of helium

被引：3
|
作者：
Nagy, L [1 ]
Benedek, A [1 ]
机构：
[1] Univ Babes Bolyai, Fac Phys, R-3400 Cluj Napoca, Romania
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2002年 / 35卷 / 03期
关键词：
D O I：
10.1088/0953-4075/35/3/304
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Cross sections for the ionization-excitation of helium by fast charged-particle impact are calculated using the impact-parameter method and second-order perturbation theory. The inclusion of the two-step I mechanism in the calculations considerably improves our previous results. The dependence of the cross sections on the sign of the projectile charge is also investigated.
引用
收藏
页码：491 / 499
页数：9
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