Generation and propagation characteristics of vacuum discharge plasma with co-axial electrodes

Wenzheng, 刘文正 Liu; Hao, 王浩 Wang

doi:10.3788/hplpb20132508.2111

强激光与粒子束

2013

DOI: 10.3788/hplpb20132508.2111

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Generation and propagation characteristics of vacuum discharge plasma with co-axial electrodes

刘文正 Liu Wenzheng¹,

王浩 Wang Hao²

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2014

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Impact of the Insulator on the Electric Field and Generation Characteristics of Vacuum Arc Metal Plasmas

Liu¹,

Wang²,

Dou³

2014

Plasma Sci. Technol.

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The field electron emission plays a vital role in the process of vacuum discharge breakdown. The electric field strength at the cathode tip is significant to the generation characteristics of vacuum arc metal plasmas. To increase the field strength at the cathode tip, a coaxial electrode plasma source was employed with an insulator settled between the electrodes. The math expression of the field strength is derived based on the Gauss theory. The impact of the insulator on the electric field and parameters of plasmas were investigated by MAXWELL 3D R simulation software and the Langmuir probe. In addition, a composite insulator was adopted to further strengthen the field strength. A series of experiments were performed to focus on the role of the composite insulator in detail. The experimental and simulation results indicate that, a reasonable layout of the insulator, especially the composite insulator, can effectively increase the field strength at the cathode tip and the plasma density.

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Impact of the Insulator on the Electric Field and Generation Characteristics of Vacuum Arc Metal Plasmas

Liu¹,

Wang²,

Dou³

2014

Plasma Sci. Technol.

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show abstract

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Generation and propagation characteristics of vacuum discharge plasma with co-axial electrodes

Cited by 1 publication

References 0 publications

Impact of the Insulator on the Electric Field and Generation Characteristics of Vacuum Arc Metal Plasmas

Impact of the Insulator on the Electric Field and Generation Characteristics of Vacuum Arc Metal Plasmas

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