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Science in China Series A: Mathematics

, Volume 40, Issue 3, pp 303–307 | Cite as

Visible light emission in collisions between O5+ ions and He atoms

  • Dawan Li
  • Guangyan Pan
  • Feng Yang
  • Zhanwen Liu
  • Sixin Zhou
  • Wen Zhang
  • Xuezhen Zhang
  • Xiaohong Guo
  • Youde Wang
  • Zhihu Yang
  • Xinwen Ma
  • Huiping Liu
  • Mengchun Zhao
Article
  • 28 Downloads

Abstract

Visible light emission spectra during collisions between O5+ ions and He atoms in the range of 200–800 nm at different projectile energies (4.06–5.31 keV-u−1) have been measured. Emission spectra show that there are three channels of excitation in the O5+-He collision system: (i) single-electron capture into excited states; (ii) double-electron capture into excited states; (iii) direct excitation of target atoms. There are transitions between states with comparably high quantum numbersnl. The absolute emission cross-sections of every spectral line are calculated. The relations of these cross-sections with the energy of the projectiles are studied.

Keywords

visible light emission spectrum absolute emission cross-section 

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Copyright information

© Science in China Press 1997

Authors and Affiliations

  • Dawan Li
    • 1
  • Guangyan Pan
    • 1
  • Feng Yang
    • 1
  • Zhanwen Liu
    • 2
  • Sixin Zhou
    • 2
  • Wen Zhang
    • 2
  • Xuezhen Zhang
    • 2
  • Xiaohong Guo
    • 2
  • Youde Wang
    • 2
  • Zhihu Yang
    • 2
  • Xinwen Ma
    • 2
  • Huiping Liu
    • 2
  • Mengchun Zhao
    • 2
  1. 1.Institute of PhysicsChinese Academy of SciencesBeijingChina
  2. 2.Institute of Modem PhysicsChinese Academy of SciencesLanzhouChina

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