Heavy-Particle Hybrid Simulation of a High-Voltage Glow Discharge in Helium

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概要

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• A high-voltage glow discharge — operated at several thousand Volts — is described by a hybrid model in which we apply kinetic simulation for the fast electrons and fast heavy particles (He+ ions and neutral atoms). In the model we take into account the increase of the gas temperature, and calculate the apparent secondary electron yield at the cathode from the flux-energy distributions of heavy particles. The results of the simulations show that electron production at the cathode is dominated by the impact of fast neutral atoms (ejecting ${\approx}75$% of the primary electrons) and that ionization of the gas atoms by fast heavy particles contributes significantly to the ionization balance of the discharge. A fair agreement is obtained between measured and calculated electrical characteristics and potential distributions, and the calculations confirm the existence of the high-energy electron beam observed experimentally.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2003-06-15

著者

• OHTSUKA Y.

  Department of Forensic Medicine, Faculty of Medicine, Kyushu University

• MATSUO H.

  Department of Dermatology, Shimane Medical University

• Hartmann P.

  Research Institute For Solid State Physics And Optics Of The Hungarian Academy Of Sciences

• Fukao M.

  Department of Electrical and Electronic Engineering, Shizuoka University, Johoku 3-5-1, Hamamatsu 43

• Kando M.

  Department of Electrical and Electronic Engineering, Shizuoka University, Johoku 3-5-1, Hamamatsu 43

• Donkó Z.

  Research Institute for Solid State Physics and Optics of the Hungarian Academy of Sciences, H-1525 B

• Kando M.

  Department Of Electrical And Electronic Engineering Shizuoka University

• Ohtsuka Y.

  Department Of Electrical And Electronic Engineering Shizuoka University

• Kanda M.

  Department Of Electrical And Electronic Engineering Shizuoka University

• FUKAO M.

  Department of Electrical and Electronic Engineering, Shizuoka University

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