Volume 30 Issue 12
Dec.  2018
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Article Navigation >  High Power Laser and Particle Beams  > 2018  >  30(12): 123001
Zhang Dapeng, Gao Yang, Jia Le, et al. Layout design method for BAW ladder filters[J]. High Power Laser and Particle Beams, 2018, 30: 014101. doi: 10.11884/HPLPB201830.170112
Citation: Hao Jianhong, Cao Zhanguo, Zhou Qianhong. Space charge limited current of axisymmetric vacuum diode[J]. High Power Laser and Particle Beams, 2018, 30: 123001. doi: 10.11884/HPLPB201830.180201
shu

Space charge limited current of axisymmetric vacuum diode

doi: 10.11884/HPLPB201830.180201
  • 1.

    School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China

  • 2.

    Beijing Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

  • Received Date: 2018-07-24
  • Rev Recd Date: 2018-10-10
  • Publish Date: 2018-12-15
    Abstract
  • Based on the ArcPIC code, this paper analyzes the distribution of electron density and the field on the cathode surface using the PIC-MCC method. At the same time, it gives the fitting formula of two-dimensional space charge limited current. This provides a theoretical reference for the design and application of vacuum diodes. It is found that the electric field of cathode surface increases with the increase of cathode current density, then oscillates and tends to a stable state. The two-dimensional space charge limited current density decreases with the increase of cathode emission radius, and the larger the cathode emission radius, the closer the current to the one-dimensional space charge limited current.
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    • References(16)
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