Effect of insulating films on the current of an electron beam from gas-filled diodes exposed to voltage pulses with a nanosecond rise time

Kostyrya, I. D.; Тарасенко, В. Ф.

doi:10.1134/s1063784206110193

Cited by 6 publications

(2 citation statements)

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“…In some studies, electromagnetic noise was interpreted as a runaway electron beam with amplitude of up to 2 kA in diodes with dielectric films and grid anodes [52][53][54]. An analysis of the results showed that for grid anodes with a large mesh size, the displacement current can be an order of magnitude greater than the runaway electron beam current [55].…”

Section: Resultsmentioning

confidence: 99%

Subnanosecond breakdown in high-pressure gases

Naidis

Тарасенко

Babaeva

et al. 2018

Plasma Sources Sci. Technol.

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Pulsed discharges in high-pressure gases are of considerable interest as sources of nonequilibrium plasma for various technological applications: pollution control, pumping of laser media, plasma-assisted combustion, etc. Recently, attention has been attracted to the use of subnanosecond voltage fronts, producing diffuse discharges with radii of several millimeters. Such plasma structures, similar to pulsed glow discharges, are of special interest for applications due to quasi-uniformity of plasma parameters in relatively large gas volumes. This review presents the results of experimental and computational study of subnanosecond diffuse discharge formation. A description of generators of short high-voltage pulses with subnanosecond fronts and of discharge setups is given. Diagnostic methods for the measurement of various discharge parameters with high temporal and spatial resolution are described. Obtained experimental data on plasma properties for a wide range of governing factors are discussed. A review of various theoretical approaches used for computational study of the dynamics and structure of fast ionization waves is given; the applicability of conventional fluid streamer models for simulation of subnanosecond ionization waves is discussed. Calculated spatial-temporal profiles of plasma parameters during streamer propagation are presented. The efficiency of subnanosecond discharges for the production of reactive species is evaluated. On the basis of the comparison of simulation results and experimental data the effects of various factors (voltage rise time, polarity, etc.) on discharge characteristics are revealed. The major physical phenomena governing the properties of subnanosecond breakdown are analyzed.

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Section: Resultsmentioning

confidence: 99%

Subnanosecond breakdown in high-pressure gases

Naidis

Тарасенко

Babaeva

et al. 2018

Plasma Sources Sci. Technol.

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“…This effect was not taken into account in [39]. When using a rare grid or when not using a grid at all, the amplitude of the displacement current can substantially exceed the electron beam current [20, 26, 40].…”

Section: Synchronisation Of Voltage and Discharge Current Pulses Wimentioning

confidence: 99%

Methods for recording the time profile of single ultrashort pulses of electron beams and discharge currents in real‐time mode

Тарасенко

Рыбка

2016

High Voltage

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The collectors for measuring the time profile of a current pulse of the runaway electron beam that are generated under atmospheric pressure are described. An analysis of changes in pulse shape depending on the bandwidth of the registration path with a temporal resolution of up to 20 ps was performed. It is shown that the electron beam detected behind small-diameter diaphragms has a complex structure, which depends on the parameters of the gas diode. There is a design of the current shunts with a temporal resolution of up to 100 ps in this study. Measurement techniques of voltage pulses with subnanosecond and nanosecond duration are briefly described. High Voltage

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