中国物理B ›› 2011, Vol. 20 ›› Issue (6): 68402-068402.doi: 10.1088/1674-1056/20/6/068402

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Effects of the insulated magnetic field and oblique incidence of electrons on the multipactor in MILO

范杰清, 郝建红   

  1. College of Electric and Electronic Engineering, North China Electric Power University, Beijing 102206, China
  • 收稿日期:2009-11-30 修回日期:2010-11-26 出版日期:2011-06-15 发布日期:2011-06-15
  • 基金资助:
    Project supported by the High Power Radiation Key Laboratory Foundation of the National High Technology Research and Development Program of China (Grant No. 20050601).

Effects of the insulated magnetic field and oblique incidence of electrons on the multipactor in MILO

Fan Jie-Qing(范杰清)† and Hao Jian-Hong(郝建红)   

  1. College of Electric and Electronic Engineering, North China Electric Power University, Beijing 102206, China
  • Received:2009-11-30 Revised:2010-11-26 Online:2011-06-15 Published:2011-06-15
  • Supported by:
    Project supported by the High Power Radiation Key Laboratory Foundation of the National High Technology Research and Development Program of China (Grant No. 20050601).

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摘要： The theoretical analysis and actual performance of the single-surface multipactor discharge model in the presence of a magnetic field are conducted through simulations. The effects of the magnitude of the insulated magnetic field and the oblique incidence of electrons on the multipactor are analysed. The results show that the multipactor susceptibility region shrinks gradually as the magnetic field increases when the electron cyclotron frequency is close to the RF frequency of the electric field. As a result, the evolution of the multipactor discharge will reach saturation earlier and become saturated at a higher level than the case when the magnetic field is absent, but the change of evolution and saturation as the insulated magnetic field increases is not obvious.

Abstract: The theoretical analysis and actual performance of the single-surface multipactor discharge model in the presence of a magnetic field are conducted through simulations. The effects of the magnitude of the insulated magnetic field and the oblique incidence of electrons on the multipactor are analysed. The results show that the multipactor susceptibility region shrinks gradually as the magnetic field increases when the electron cyclotron frequency is close to the RF frequency of the electric field. As a result, the evolution of the multipactor discharge will reach saturation earlier and become saturated at a higher level than the case when the magnetic field is absent, but the change of evolution and saturation as the insulated magnetic field increases is not obvious.

Key words: multipactor, susceptibility diagram, insulated magnetic field

中图分类号:  (Microwave tubes (e.g., klystrons, magnetrons, traveling-wave, backward-wave tubes, etc.))

  • 84.40.Fe
52.20.Fs (Electron collisions) 52.40.Db (Electromagnetic (nonlaser) radiation interactions with plasma)