Journal of Fusion Energy

, Volume 33, Issue 6, pp 736–739 | Cite as

Hot Cathode’s Working Voltage Impacts on the Operation of High Current Ion Source

  • Yuqian Chen
  • Chundong Hu
  • Zhimin Liu
  • Yahong Xie
Original Research


High power ion source is one of the important parts of the neutral beam injection. It produces high energy beam by extracting and accelerating ions from its arc chamber. The hot cathode (filaments) in the arc chamber of the ion source operates in two modes. Operation mode of the cathode has great effect on the stable operation of the ion source. Based on the theory of hot cathode and experimental results, this paper presents the operation results (beam current, arc efficiency) of an ion source with various cathode temperatures (controlled by voltage applied to the cathode).


High power ion source Hot cathode’s operation modes Arc efficiency Beam current 



This work is supported by the National Magnetic Confinement Fusion Science Program of China (2013GB101000).


  1. 1.
    Y.X. Wan, J.G. Li, P.D. Weng, Plasma Sci. Technol 8, 253 (2006)CrossRefADSGoogle Scholar
  2. 2.
    T. Itoh, N. Akino, N. Ebisawa et al., Fusion Eng. Des. 51–52, 1039 (2000)CrossRefGoogle Scholar
  3. 3.
    D. Ciric, D.P.D. Brown, C.D. Challis et al., Fusion Eng. Des. 82, 610 (2007)CrossRefGoogle Scholar
  4. 4.
    H.S. Zhang, Ion Source and High Power Neutral Beam Source, 1st edn. (Atomic Energy Press, Beijing, 1987), pp. 76–77Google Scholar
  5. 5.
    R. Hong, D. Kcllman, G. Santamaria, A. Collmebe, J. Em, R. Le, et at., Beam current regulation of DIII-D neutral beam long pulse ion sources, in Pmc. 13th Symposium on hion Engineering, pp. 987–990, 1989Google Scholar
  6. 6.
    C.C. Tsai, M.M. Menon, P.M. Ryan, D.E. Schechter, W.L. Stirling, H.H. Haselton, Long-pulse ion source for neutral-beam applications. Rev. Sci. Instrum. 53, 417–423 (1982)CrossRefADSGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Yuqian Chen
    • 1
  • Chundong Hu
    • 1
  • Zhimin Liu
    • 1
  • Yahong Xie
    • 1
  1. 1.Institute of Plasma PhysicsChinese Academy of SciencesHefeiChina

Personalised recommendations