中国物理B ›› 1996, Vol. 5 ›› Issue (7): 520-529.doi: 10.1088/1004-423X/5/7/006

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

THEORETICAL INVESTIGATION OF ELECTRON-NEUTRAL ATOM COLLISION PROCESS AND ELECTRON TRANSPORT PARAMETERS IN DC GLOW DISCHARGE OF PLASMA WITH A TRANSVERSE MAGNETIC FIELD

魏合林1, 刘祖黎1, 李再光2, 郑启光2   

  1. (1)Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, China; (2)National Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China
  • 收稿日期:1995-02-20 修回日期:1995-10-05 出版日期:1996-07-20 发布日期:1996-07-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China.

THEORETICAL INVESTIGATION OF ELECTRON-NEUTRAL ATOM COLLISION PROCESS AND ELECTRON TRANSPORT PARAMETERS IN DC GLOW DISCHARGE OF PLASMA WITH A TRANSVERSE MAGNETIC FIELD

WEI HE-LIN (魏合林)a, LIU ZU-LI (刘祖黎)a, LI ZAI-GUANG (李再光)b, ZHENG QI-GUANG (郑启光)b   

  1. a Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, China; b National Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:1995-02-20 Revised:1995-10-05 Online:1996-07-20 Published:1996-07-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China.

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摘要： A Monte Carlo simulation (MCS) technique is used to simulate the cathode sheath region of a helium dc glow discharge. In such a simulation, a nonuniform electric field and a transverse uniform magnetic field are considered. When the magnetic field intensity increases from 0 to 800 G, all types of collision considered in this paper are enhanced. This result is in agreement with the experimental result. The results also show that with the increase of magnetic field intensity, the electron transport time, the electron density increase, and the electron mean energy decreases.

Abstract: A Monte Carlo simulation (MCS) technique is used to simulate the cathode sheath region of a helium dc glow discharge. In such a simulation, a nonuniform electric field and a transverse uniform magnetic field are considered. When the magnetic field intensity increases from 0 to 800 G, all types of collision considered in this paper are enhanced. This result is in agreement with the experimental result. The results also show that with the increase of magnetic field intensity, the electron transport time, the electron density increase, and the electron mean energy decreases.

中图分类号:  (Glow; corona)

  • 52.80.Hc
52.25.Fi (Transport properties) 52.65.Pp (Monte Carlo methods) 52.40.Kh (Plasma sheaths) 52.20.Fs (Electron collisions) 52.20.Hv (Atomic, molecular, ion, and heavy-particle collisions)