Fast electrons behind grid cathode in nanosecond discharges in atmospheric pressure AIR

Victor F. Tarasenko, Igor D. Kostyraya, Andrey V. Kozyrev, Dmitry V. Beloplotov

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The chapter reports on experiments investigating the generation of a backward runaway electron beam (BRAEB) in the gap between a plane anode and a grounded grid cathode in atmospheric pressure air. The high-voltage pulses of positive polarity applied to the plane electrode were produced by a SLEP-150 pulser and had a FWHM of 1 ns and rise time of 0.3 ns. It was found that the BRAEB current downstream of the grid cathode was much influenced by the anode material and that its amplitude and the X-ray dose from the gas diode depended differently on the interelectrode gap. The average X-ray exposure dose in a pulse was more than 3.5 mR. The spectra of fast electrons moving toward and backward the anode were reconstructed from attenuation curves.

Original languageEnglish
Title of host publicationGeneration of Runaway Electron Beams and X-Rays in High Pressure Gases, Volume 1
Subtitle of host publicationTechniques and Measurements
PublisherNova Science Publishers, Inc.
Pages99-114
Number of pages16
ISBN (Electronic)9781634858465
ISBN (Print)9781634858304
Publication statusPublished - 1 Jan 2016
Externally publishedYes

Keywords

  • Atmospheric pressure air
  • Nanosecond discharge
  • Runaway electron beam
  • SLEP-150 pulser
  • Subnanosecond breakdown
  • X-ray

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Tarasenko, V. F., Kostyraya, I. D., Kozyrev, A. V., & Beloplotov, D. V. (2016). Fast electrons behind grid cathode in nanosecond discharges in atmospheric pressure AIR. In Generation of Runaway Electron Beams and X-Rays in High Pressure Gases, Volume 1: Techniques and Measurements (pp. 99-114). Nova Science Publishers, Inc..