RELATIVE DIFFERENTIAL CROSS-SECTIONS FOR THE ELECTRON-IMPACT EXCITATION OF THE 3(3)P, 3(1)D AND 3(3)D STATES OF HELIUM

被引：6
|
作者：
BATELAAN, H
VERCOULEN, F
VANECK, J
HEIDEMAN, HGM
机构：
[1] Buys Ballotlaboratorium, Rijksuniversileit Utrecht, Utrecht, 3584 CC
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1992年 / 25卷 / 22期
关键词：
D O I：
10.1088/0953-4075/25/22/023
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present measurements of relative differential cross sections for the electron impact excitation of the 3(1)D, 3(3)D and 3(3)P states of helium at energies of 40, 45, 60 and 80 eV and for scattering angles ranging from 30-degrees to 120-degrees. The results are extracted from existing data of electron-photon coincidence experiments. Our results are in agreement with distorted wave calculations. We point out the consistency of our results with the angular behaviour of the coherence parameter rho00 also obtained from these coincidence experiments.
引用
收藏
页码：4911 / 4916
页数：6
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