Three-dimensional numerical simulation of microhollow cathode discharge model

gu xiaowei; meng lin; li jiayin; sun yiqin; yu xinhua

Volume 21 Issue 01

Jan. 2009

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Article Navigation > High Power Laser and Particle Beams > 2009 > 21(01): 0-

wu gang, qiu aici, hei dongwei, et al. TAP curved crystal spectrometer for diagnosing K-shell radiation of aluminum Z-pinch plasma[J]. High Power Laser and Particle Beams, 2009, 21.

Citation:

gu xiaowei, meng lin, li jiayin, et al. Three-dimensional numerical simulation of microhollow cathode discharge model[J]. High Power Laser and Particle Beams, 2009, 21.

wu gang, qiu aici, hei dongwei, et al. TAP curved crystal spectrometer for diagnosing K-shell radiation of aluminum Z-pinch plasma[J]. High Power Laser and Particle Beams, 2009, 21.

Citation:

gu xiaowei, meng lin, li jiayin, et al. Three-dimensional numerical simulation of microhollow cathode discharge model[J]. High Power Laser and Particle Beams, 2009, 21.

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Three-dimensional numerical simulation of microhollow cathode discharge model

1.
School of Physical Electronics,Unversity of Electronic Science and Technology of China,Chengdu 610054,China

Publish Date: 2009-01-15

Abstract

Abstract

Three-dimensional fluid equations, steady-state differential equation and reasonable boundary conditions of cylindrical hollow cathode are presented, some parameters have been calculated such as particle density distribution, electron energy and the distribution of electric field. Under the pressure of 6 666.1~13 332.2 Pa and the voltage of 150~300 V discharge, it is found that reducing the dimension of the cathode can enhance the negative glow space, and increasing pressure will enhance the electron density. The simulated results show that the discharge parameters are strongly dependent on voltage and pressure of the microhollow cathode.
- gas discharge,
- microhollow cathode,
- fluid model,
- cathode dark space,
- negative glow space,

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