Mechanism of Low Pressure dc Breakdown in a Thermo-Cathode Gas Discharge

Chin. Phys. Lett.

1993, Vol. 10

Issue (7): 417-420 DOI:

Original Articles

Mechanism of Low Pressure dc Breakdown in a Thermo-Cathode Gas Discharge

HU Xiwei;CHEN Yang

Department of Modern Physics, University of Science and Technology of China, Hefei 230026

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HU Xiwei, CHEN Yang 1993 Chin. Phys. Lett. 10 417-420

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Abstract A theory about the dc breakdown process of a gas discharge with thermocathode in a very low pressure (10^-2 Pa) is provided. The mobility of ions due to ion-neutral charge exchange collisions is mainly responsible for the space cumulative effect of positive charges and the formation of the virtual anode. A numerical result for the breakdown process of the argon gas discharge is given.

Keywords: 51.50.+v 52.25.Jm 52.80.Tn

Published: 01 July 1993

PACS:	51.50.+v	(Electrical properties)
	52.25.Jm	(Ionization of plasmas)
	52.80.Tn	(Other gas discharges)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1993/V10/I7/0417

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