Investigation of Valence-shell Excitations of Helium by Electron Impact

LIU Xiao-jing; ZHU Lin-fan; YUAN Zhen-sheng; LI Wen-bin; CHEN Hua-dong; XU Ke-zun

doi:10.11804/NuclPhysRev.19.02.298

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Article Navigation > Nuclear Physics Review > 2002 > 19(2): 298-300

LIU Xiao-jing, ZHU Lin-fan, YUAN Zhen-sheng, LI Wen-bin, CHEN Hua-dong, XU Ke-zun. Investigation of Valence-shell Excitations of Helium by Electron Impact[J]. Nuclear Physics Review, 2002, 19(2): 298-300. doi: 10.11804/NuclPhysRev.19.02.298

Citation:

LIU Xiao-jing, ZHU Lin-fan, YUAN Zhen-sheng, LI Wen-bin, CHEN Hua-dong, XU Ke-zun. Investigation of Valence-shell Excitations of Helium by Electron Impact[J]. Nuclear Physics Review, 2002, 19(2): 298-300. doi: 10.11804/NuclPhysRev.19.02.298

Investigation of Valence-shell Excitations of Helium by Electron Impact

doi: 10.11804/NuclPhysRev.19.02.298

(Key Laboratory of Band-selective Chemistry; Department of Modern Physics; University of Science and Technology of China; Hefei 230027; China);

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2002-06-20

Abstract

With electron impact energy of 2 500 eV and energy resolution of 85 meV, the differential cross sections and the generalized oscillator strengths of the excitations of 1 1S→2 1S, 2 1P, 3 1S and 3 1P of helium has been measured by electron energy loss spectroscopy . Comparing with previous experimental and theoretical results, it seems that the first Born approximation is valid for these excitations under such an electron impact energy.
- excitation,
- differential cross section,
- generalized oscillator strength
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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