Electron impact excitation of helium atom

doi:10.1088/1674-1056/24/8/083103

中国物理B ›› 2015, Vol. 24 ›› Issue (8): 83103-083103.doi: 10.1088/1674-1056/24/8/083103

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Electron impact excitation of helium atom

韩小英^a, 曾德灵^b, 高翔^c, 李家明^{b d e}

a Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
b Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China;
c Beijing Computational Science Research Center, Beijing 100084, China;
d Department of Physics and Center for Atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084, China;
e Collaborative Innovation Center of Quantum Matter, Beijing 100084, China

收稿日期:2015-03-03 修回日期:2015-04-13 出版日期:2015-08-05 发布日期:2015-08-05
基金资助:
Project supported by the National Basic Research Program of China (Grant Nos. 2011CB921501 and 2013CB922200), the National Natural Science Foundation of China (Grant Nos. 11274035, 11275029, 11328401, 11371218, 11474031, 11474032, and 11474034), and the Foundation of Development of Science and Technology of Chinese Academy of Engineering Physics (Grant Nos. 2013A0102005 and 2014A0102005).

Electron impact excitation of helium atom

Han Xiao-Ying (韩小英)^a, Zeng De-Ling (曾德灵)^b, Gao Xiang (高翔)^c, Li Jia-Ming (李家明)^{b d e}

a Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;
b Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China;
c Beijing Computational Science Research Center, Beijing 100084, China;
d Department of Physics and Center for Atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084, China;
e Collaborative Innovation Center of Quantum Matter, Beijing 100084, China

Received:2015-03-03 Revised:2015-04-13 Online:2015-08-05 Published:2015-08-05
Contact: Han Xiao-Ying E-mail:han_xiaoying@iapcm.ac.cn
Supported by:
Project supported by the National Basic Research Program of China (Grant Nos. 2011CB921501 and 2013CB922200), the National Natural Science Foundation of China (Grant Nos. 11274035, 11275029, 11328401, 11371218, 11474031, 11474032, and 11474034), and the Foundation of Development of Science and Technology of Chinese Academy of Engineering Physics (Grant Nos. 2013A0102005 and 2014A0102005).

摘要/Abstract

摘要：

A method to deal with the electron impact excitation cross sections of an atom from low to high incident energies are presented. This method combines the partial wave method and the first Born approximation (FBA), i.e., replacing the several lowest partial wave cross sections of the total cross sections within FBA by the corresponding exact partial wave cross sections. A new set of codes are developed to calculate the FBA partial wave cross sections. Using this method, the convergent e–He collision cross sections of optical-forbidden and optical-allowed transitions at low to high incident energies are obtained. The calculation results demonstrate the validity and efficiency of the method.

关键词: electron impact excitation cross section, first Born approximation, partial wave method

Abstract:

Key words: electron impact excitation cross section, first Born approximation, partial wave method

中图分类号: (Ab initio calculations)

31.15.A-

34.80.-i (Electron and positron scattering)

韩小英, 曾德灵, 高翔, 李家明. Electron impact excitation of helium atom[J]. 中国物理B, 2015, 24(8): 83103-083103.

Han Xiao-Ying (韩小英), Zeng De-Ling (曾德灵), Gao Xiang (高翔), Li Jia-Ming (李家明). Electron impact excitation of helium atom[J]. Chin. Phys. B, 2015, 24(8): 83103-083103.

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Electron impact excitation of helium atom

Electron impact excitation of helium atom

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