Study of the discharge mode in micro-hollow cathode

Feng He; Shoujie He; Xiaofei Zhao; Bingang Guo; Jiting Ouyang

doi:10.1088/1009-0630/14/12/08

Study of the discharge mode in micro-hollow cathode

Feng He^*, Shoujie He, Xiaofei Zhao, Bingang Guo, Jiting Ouyang

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

In this study, micro-hollow cathode discharge (MHCD) is investigated by a fluid model with drift-diffusion approximation. The MHC device is a cathode/dielectric/anode sandwich structure with one hole of a diameter D=200 μ m. The gas is a Ne/Xe mixture at a pressure p=50∼500 Torr. The evolutions of the discharge show that there are two different discharge modes. At larger pD the discharge plasma and high density excited species expand along the cathode surface and, a ringed discharge mode is formed. At smaller pD, the discharge plasma and the excited species expand along the axis of the cathode aperture to form a columnar discharge.

Original language	English
Pages (from-to)	1079-1083
Number of pages	5
Journal	Plasma Science and Technology
Volume	14
Issue number	12
DOIs	https://doi.org/10.1088/1009-0630/14/12/08
Publication status	Published - Dec 2012

Keywords

Discharge mode
Drift-diffusion approximation
Fluid model
MHCD

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10.1088/1009-0630/14/12/08

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title = "Study of the discharge mode in micro-hollow cathode",

abstract = "In this study, micro-hollow cathode discharge (MHCD) is investigated by a fluid model with drift-diffusion approximation. The MHC device is a cathode/dielectric/anode sandwich structure with one hole of a diameter D=200 μ m. The gas is a Ne/Xe mixture at a pressure p=50∼500 Torr. The evolutions of the discharge show that there are two different discharge modes. At larger pD the discharge plasma and high density excited species expand along the cathode surface and, a ringed discharge mode is formed. At smaller pD, the discharge plasma and the excited species expand along the axis of the cathode aperture to form a columnar discharge.",

keywords = "Discharge mode, Drift-diffusion approximation, Fluid model, MHCD",

author = "Feng He and Shoujie He and Xiaofei Zhao and Bingang Guo and Jiting Ouyang",

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AU - He, Feng

AU - He, Shoujie

AU - Zhao, Xiaofei

AU - Guo, Bingang

AU - Ouyang, Jiting

PY - 2012/12

Y1 - 2012/12

N2 - In this study, micro-hollow cathode discharge (MHCD) is investigated by a fluid model with drift-diffusion approximation. The MHC device is a cathode/dielectric/anode sandwich structure with one hole of a diameter D=200 μ m. The gas is a Ne/Xe mixture at a pressure p=50∼500 Torr. The evolutions of the discharge show that there are two different discharge modes. At larger pD the discharge plasma and high density excited species expand along the cathode surface and, a ringed discharge mode is formed. At smaller pD, the discharge plasma and the excited species expand along the axis of the cathode aperture to form a columnar discharge.

AB - In this study, micro-hollow cathode discharge (MHCD) is investigated by a fluid model with drift-diffusion approximation. The MHC device is a cathode/dielectric/anode sandwich structure with one hole of a diameter D=200 μ m. The gas is a Ne/Xe mixture at a pressure p=50∼500 Torr. The evolutions of the discharge show that there are two different discharge modes. At larger pD the discharge plasma and high density excited species expand along the cathode surface and, a ringed discharge mode is formed. At smaller pD, the discharge plasma and the excited species expand along the axis of the cathode aperture to form a columnar discharge.

KW - Discharge mode

KW - Drift-diffusion approximation

KW - Fluid model

KW - MHCD

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DO - 10.1088/1009-0630/14/12/08

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AN - SCOPUS:84871666802

SN - 1009-0630

VL - 14

SP - 1079

EP - 1083

JO - Plasma Science and Technology

JF - Plasma Science and Technology

IS - 12

ER -

Study of the discharge mode in micro-hollow cathode

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Keywords

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