Time-resolved investigation of nanosecond discharge in dense gas sustained by short and long high-voltage pulse

S. Yatom, J. Z. Gleizer, D. Levko, V. Vekselman, V. Gurovich, E. Hupf, Y. Hadas, Ya E. Krasik

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20 Scopus citations

Abstract

The results of experimental and numerical studies of the generation of runaway electrons (RAE) in a pressurized air-filled diode under the application of 20 ns, 5 ns and 1 ns duration high-voltage pulses with an amplitude up to 160 kV are presented. It is shown that with a 1 ns pulse, RAE with energy ≥20 keV reach the anode prior to the formation of the plasma channel between the cathode and anode. Conversely, with 20 ns or 5 ns pulses, RAE with energy ≥20 keV were obtained at the anode only after the formation of the plasma channel. In addition, the high- and low-impedance stages of the development of the discharge were found. Finally, a comparison between experimental and numerical simulation results is presented.

Original languageEnglish (US)
Article number65001
JournalEPL
Volume96
Issue number6
DOIs
StatePublished - Dec 1 2011

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