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Self-pulsing Characteristic of Hollow Cathode Discharge at Low Pressure Range in Argon

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Accession number:  20123615396260

  Title:  Self-pulsing characteristic of hollow cathode discharge at low pressure range in argon
  Authors:  He, Shoujie1, 2 ; Ouyang, Jiting2 ; He, Feng2 ; Liu, Zhiqiang1
  Author affiliation:  1 College of Physics Science and Technology, Hebei University, Baoding 071002, China
2 School of Physics, Beijing Institute of Technology, Beijing 100081, China
  Corresponding author:  He, S. (heshouj@hbu.edu.cn)
  Source title:  Gaodianya Jishu/High Voltage Engineering
  Abbreviated source title:  Gaodianya Jishu
  Volume:  38
  Issue:  7
  Issue date:  July 2012
  Publication year:  2012
  Pages:  1655-1660
  Language:  Chinese
  ISSN:  10036520
  CODEN:  GAJIE5
  Document type:  Journal article (JA)
  Publisher:  Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China
  Abstract:  In order to increase the discharge stability and explore the mechanism of self-pulsing in hollow cathode discharge, the self-pulsing phenomenon was investigated in a cylindrical hollow cathode at low pressure in argon. The volt-ampere characteristics, the discharge images, and the time evolution of the current and voltage of self-pulsing were measured under different conditions. The influences of the gas pressure, the discharge current, and the external resistance on the self-pulsing were also studied. Results show that the self-pulsing can be observed in the negative differential resistance region of hollow cathode discharge. The pulse frequency ranges from several kilohertz to tens of kilohertz, and increases with the average current. It is determined mainly by the decay time of the current pulse. The external resistor in series has some influences on the discharge range where the self-pulsing exists. The self-pulsing can be created in a wider average current range as the resistance increasing.
  Number of references:  25
  Main heading:  Current voltage characteristics
  Controlled terms:  Argon  -  Cathodes
  Uncontrolled terms:  External resistance  -  Hollow cathode discharge  -  Pulsing frequencies  -  Self-pulsing  -  Volt-ampere characteristics
  Classification code:  714 Electronic Components and Tubes -  714.1 Electron Tubes -  804 Chemical Products Generally
  DOI:  10.3969/j.issn.1003-6520.2012.07.018
  Database:  Compendex
Compilation and indexing terms, © 2012 Elsevier Inc.

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