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Title: Energy of electrons generated during a subnanosecond breakdown in atmospheric-pressure air

The influence of the cathode design on the energy of the main group of electrons generated during a subnanosecond breakdown in atmospheric-pressure air was studied experimentally. The electron energy was measured using a time-of-flight spectrometer with a picosecond time resolution. It is shown that the energy of the main group of electrons increases with increasing cathode curvature radius. It is established using 400- to 650-{mu}m-thick aluminum foils that the electron energy reaches its maximum value in voltage pulses with abrupt trailing edges and amplitudes below the maximum amplitude. Electrons with maximum energies are generated with a stronger spatial and amplitude scatter than those with average energies.
Authors:
; ; ; ;  [1]
  1. Russian Academy of Sciences, Institute of High Current Electronics, Siberian Branch (Russian Federation)
Publication Date:
OSTI Identifier:
22149306
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 39; Journal Issue: 7; Other Information: Copyright (c) 2013 Pleiades Publishing, Ltd.; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AIR; ALUMINIUM; ATMOSPHERIC PRESSURE; BREAKDOWN; CATHODES; DESIGN; ELECTRONS; PULSES; TIME RESOLUTION; TIME-OF-FLIGHT SPECTROMETERS