中国物理B ›› 1999, Vol. 8 ›› Issue (3): 167-173.doi: 10.1088/1004-423X/8/3/002

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DOUBLE DIFFERENTIAL CROSS SECTIONS FOR ELECTRON IMPACT IONIZATION OF HELIUM

姚云飞1, 陈长进2   

  1. (1)Department of Mathematics, Fuyang Teacher's College, Fuyang 236032, China; (2)Department of Physics, Anhui University, Hefei 230029, China; Laboratory of Electron Collision Spectroscopy, University of Science and Technology of China, Hefei 230027, China
  • 收稿日期:1998-07-27 修回日期:1998-10-21 出版日期:1999-03-15 发布日期:1999-03-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 19634040) and the Education Foundation of Anhui province (Grant No. 97JL101).

DOUBLE DIFFERENTIAL CROSS SECTIONS FOR ELECTRON IMPACT IONIZATION OF HELIUM

Yao Yun-fei (姚云飞)a, Chen Zhang-jin (陈长进)b   

  1. a Department of Mathematics, Fuyang Teacher's College, Fuyang 236032, China; b Department of Physics, Anhui University, Hefei 230029, China; Laboratory of Electron Collision Spectroscopy, University of Science and Technology of China, Hefei 230027, China
  • Received:1998-07-27 Revised:1998-10-21 Online:1999-03-15 Published:1999-03-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 19634040) and the Education Foundation of Anhui province (Grant No. 97JL101).

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摘要： The double differential cross sections for electron impact ionization of helium at incident energies of 200 eV, 100 eV and 64.6 eV have been calculated in the BBK model. The present results are found to be in generally good agreement with the latest measurements of R?der et al. and the theoretical results of the convergent close-coupling method although some quantitative discrepancy remains.

Abstract: The double differential cross sections for electron impact ionization of helium at incident energies of 200 eV, 100 eV and 64.6 eV have been calculated in the BBK model. The present results are found to be in generally good agreement with the latest measurements of R$\ddot{\rm o}$der et al. and the theoretical results of the convergent close-coupling method although some quantitative discrepancy remains.

中图分类号:  (Atomic excitation and ionization)

  • 34.80.Dp
34.50.-s (Scattering of atoms and molecules)