Study of the switching rate of gas-discharge devices based on the open discharge with counter-propagating electron beams

The switching rate of gas-discharge devices “kivotrons” based on the open discharge with counter-propagating electron beams has been experimentally studied. Structures with 2-cm2 overall cathode area were examined. The switching time was found to show a monotonic decrease with increasing the working...

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Bibliographic Details
Published in:Physics of plasmas 2015-06, Vol.22 (6)
Main Authors: Bokhan, P. A., Gugin, P. P., Lavrukhin, M. A., Zakrevsky, Dm. E.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BREAKDOWN
CATHODES
Circuits
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRON BEAMS
Electrons
GAS DISCHARGE TUBES
HELIUM
INDUCTANCE
Plasma physics
Switching
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Summary:The switching rate of gas-discharge devices “kivotrons” based on the open discharge with counter-propagating electron beams has been experimentally studied. Structures with 2-cm2 overall cathode area were examined. The switching time was found to show a monotonic decrease with increasing the working-gas helium pressure and with increasing the voltage across the discharge gap at breakdown. The minimum switching time was found to be ∼240 ps at 17 kV voltage, and the maximum rate of electric-current rise limited by the discharge-circuit inductance was 3 × 1012 A/s.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4922752