Investigation of Arc Regulation of Hot Cathode Ion Source with Langmuir Probe

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• 作者：Yahong Xie (1)
  Chundong Hu (1)
  Sheng Liu (1)
  Zhimin Liu (1)
  Jun Li (1)
  Caichao Jiang (1)
  
• 关键词：NBI ; Ion source ; Arc regulation ; Langmuir probe
• 刊名：Journal of Fusion Energy
• 出版年：2014
• 出版时间：June 2014
• 年：2014
• 卷：33
• 期：3
• 页码：275-278
• 全文大小：745 KB
• 参考文献：1. C.D. Hu, L.Z. Liang, Y.L. Xie, J.L. Wet, Y.H. Xie, J. Li, Z.M. Liu, S. Liu, C.C. Jiang, P. Sheng, Y.J. Xu, Design of neutral beam-line of EAST. Plasma Sci. Technol 13, 541-45 (2011) CrossRef
  2. B. Wu, J.F. Wang, J.B. Li, J. Wang, C.D. Hu, Neutral beam injection simulation of EAST. Fusion Eng Design 86, 947-50 (2011) CrossRef
  3. C.D. Hu, NBI Team, Conceptual design of neutral beam injection system for EAST. Plasma Sci. Technol 14, 567-72 (2012) CrossRef
  4. C.D. Hu, Y.H. Xie, S. Liu, Y.L. Xie, C.C. Jiang, S.H. Song, J. Li, Z.M. Liu, First plasma of megawatt high current ion source for neutral beam injector of the experimental advanced superconducting tokamak on the test bed. Rev. Sci. Instrum. 82, 023303 (2011) CrossRef
  5. C.D. Hu, N Team, Preliminary results of ion beam extraction tests on EAST neutral beam injector. Plasma Sci. Technol 14, 871-73 (2012) CrossRef
  6. C.D. Hu, N Team, Achievement of 100?s long pulse neutral beam extraction in EAST neutral beam injector. Plasma Sci. Technol 15, 201-03 (2013) CrossRef
  7. Y.H. Xie, C.D. Hu, S. Liu, J. Li, C.C. Jiang, Measurement of plasma parameters of an ion source for EAST-NBI using water-cooled Langmuir probe. Nucl Instrum Method Phys Res A 676, 18-0 (2012) CrossRef
  8. Y.H. Xie, C.D. Hu, S. Liu, C.C. Jiang, J. Li, L.Z. Liang, N Team, Arc discharge regulation of a megawatt hot cathode bucket ion source for the experimental advanced superconducting tokamak neutral beam injector. Rev. Sci. Instrum. 83, 013301 (2012) CrossRef
  9. C.D. Hu, Y.H. Xie, N Team, The development of a Megawatt-level high current ion source. Plasma Sci. Technol 14, 75-7 (2012) CrossRef
  
• 作者单位：Yahong Xie (1)
  Chundong Hu (1)
  Sheng Liu (1)
  Zhimin Liu (1)
  Jun Li (1)
  Caichao Jiang (1)
  
  1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China
  
• ISSN：1572-9591

文摘

The neutral beam injector (NBI) is one of the main plasma heating methods for nuclear fusion devices. For the hot cathode high current ion source, the arc current and beam current tends to increase during the beam pulse. In order to gets long pulse beam extraction, the arc regulation technology is employed. The Langmuir probes are installed on the experimental advanced superconducting tokamak-NBI ion source, to feedback control the arc discharge and beam extraction. The experimental results show that, the long pulse of 100?s ion beam is extracted with beam energy of 30?keV with arc regulation. More the results are presented in this paper.