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Electron avalanche model of dielectric-vacuum surface breakdown

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1 Author(s)
Lauer, Eugene J. ; Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551-9234, USA

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.2818360 

The model assumes that an “initiating event” results in positive ions on the surface near the anode and reverses the direction of the normal component of electric field so that electrons in vacuum are attracted to the dielectric locally. A sequence of surface electron avalanches progresses in steps from the anode to the cathode. For 200 kV across 1 cm, the spacing of avalanches is predicted to be about 13 μm. The time for avalanches to step from the anode to the cathode is predicted to be about a nanosecond.

Published in:

Journal of Applied Physics  (Volume:102 ,  Issue: 11 )

Date of Publication:

Dec 2007

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