Formation of diffuse and spark discharges in nonuniform electric field in elevated pressure gases

V. F. Tarasenko, E. Kh Baksht, A. G. Burachenko, M. V. Erofeev

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Diffuse and spark discharges are formed and studied during breakdowns with nonuniform electric field in nitrogen, air, and argon at elevated pressures and pulse repetition frequency of 400 Hz. Negative-polarity voltage pulses of the amplitude ~20 kV, width at the base of ~15 ns and rise time of ~2 ns are applied to the electrode with a small radius of curvature. In the conditions of generation of runaway electron beams and X-rays, a CCD camera records the time of the diffuse discharge formation and its duration prior to its transition to a spark one. In all three gases, the diffuse discharge is formed during the time not exceeding 1 ns, when the bright spots appear on cathode in argon and air resulting in the beginning of the spark channel propagation.

Original languageEnglish
Pages (from-to)2105-2111
Number of pages7
JournalGaodianya Jishu/High Voltage Engineering
Volume39
Issue number9
DOIs
Publication statusPublished - Sep 2013
Externally publishedYes

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Keywords

  • CCD camera
  • Elevated pressure
  • Nanosecond diffuse discharge
  • Nonuniform electric field
  • Spark discharge

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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