Theoretical investigation for the positive column of the four-anode DC glow discharges

Abstract

Abstract:

In helium DC glow discharges in the four-anode device with a rectangle window in the center of each electrode,the radial behaviors of the electron densities, the temperatures of electrons and the plasma collision frequencies in the positive column among the cathode and two adjacent anodes are analyzed, as well as their change in profile with pressure.Results show that the radial electron profile is about parabolic, and the collision frequencies and electron temperatures are homogeneous in the whole discharge tube. The effects of stainless steel anode-seats and rectangle widows on above parameters are discussed. The results provide a reference for further simulation and experiment.

Key words: Four-anode device, Glow discharge, Electron density, Electron temperature, Collision frequency

摘要：

分析了具有中间开窗电极四阳极直流辉光放电装置的氦气放电中阴极与较近阳极间放电正柱区的电子密度、电子温度和等离子体碰撞频率, 及其空间分布随放电气压变化规律。结果表明电子密度在径向上呈类似于抛物线的分布, 而碰撞频率和电子温度在整个放电管内近似均匀分布。探讨了不锈钢阳极座和矩形窗口对这些参数的影响, 为进一步进行装置仿真和实验研究提供参考。

关键词: 四阳极装置, 辉光放电, 电子密度, 电子温度, 碰撞频率

CLC Number:

O539

YUAN Zhong-cai, SHI Jia-ming. Theoretical investigation for the positive column of the four-anode DC glow discharges[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2005, 25(3): 228-232.

袁忠才, 时家明. 四阳极直流辉光放电正柱区数值分析[J]. 核聚变与等离子体物理, 2005, 25(3): 228-232.

References

[ 1] 余云鹏, 林舜辉, 林旭升, 等. 氩直流辉光放电等离子体中电子运动及能量的模拟[ J] . 核聚变与等离子体物理, 2004, 24( 3) : 236.
[ 2] 张连珠. 氮直流辉光放电活性粒子( N+ , N) 的产生率[ J] . 核聚变与等离子体物理, 2003, 23( 2) : 113.
[ 3] Bogaerts A. Comprehensive modelling network for dc glow discharges in argon [ J] . Plasma Sources Sci. Techn. ,1999, 8: 210- 229.232 核聚变与等离子体物理第25 卷
[ 4] Uhrlandt D, Schmidt M, Behnke J F, et al. Sel-f consistent description of the dc column plasma including wall interaction[ J] . J. Phys. D: Appl. Phys. , 2000, 33: 2475- 2482.
[ 5] Arslanbekov R R. Model of the cathode region and gas temperature of a dc glow discharge at high current density [ J] .J. Phys. D: Appl. Phys. , 2000, 33: 524- 544.
[ 6] Berni L A, Ueda M, Gomes G F, et al. Experimental results of a dc glow discharge source with controlled plasma floating potential for plasma immersion ion implantation [ J ] . J.Phys. D: Appl. Phys. , 2000, 33: 1592- 1595.
[ 7] Uhrlandt D. Power balance and space- charge confinement in a neon dc column plasma [ J] . J. Phys. D: Appl. Phys. ,2002, 35: 2159- 2168.
[ 8] Gurevich E L, Amiranashvili Sh, Purwins H G. Current spots in an obstructed planar glow discharge [ J] . J. Phys. D: Appl.Phys. , 2005, 38: 1029- 1033.
[ 9] Verboncoeur John P, Langdon A B, Gladd NT. An objectoriented electromagnetic pic code [ J] . Computer Physics Communications, 1995, 87: 199- 211.
[ 10] Cobine J D. Gaseous conductors [M] . New York: Dover,1958.
[ 11] LiebermanM A, Lichtenberg A J. Principles of plasma discharges and materials processing [M] . New York: John Wiley and Sons, Inc. , 1994.
[ 12] Braithwaite N St J. Introduction to gas discharges [ J] . Plasma Sources Sci. Techn. , 2000, 9: 517- 527.
[ 13] McDaniel EW. Collision phenomena in gases [M] . New York: John Wiley and Sons, Inc. , 1964.
[ 14] Brown S C. Basic data of plasma physics [M] . Cambridge,MA: MIT Press, 1967.
[ 15] MacDonald A D. Microwave breakdown in gases [M] . New York: John Wiley and Sons, Inc. , 1966.
[ 16] Geller R, Hosea J. Electron collision frequencies [ R] . Report EUR- CEA- FC- 495, Grenoble, 1968.

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