ELECTRON AVALANCHE MODEL OF DIELECTRIC-VACUUM SURFACE BREAKDOWN

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Description

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 microns. The time for avalanches to step from the anode to the cathode is predicted to be about a ns.

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PDF-file: 21 pages; size: 0.3 Mbytes

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Lauer, E J February 21, 2007.

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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 microns. The time for avalanches to step from the anode to the cathode is predicted to be about a ns.

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PDF-file: 21 pages; size: 0.3 Mbytes

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  • Journal Name: Journal of Applied Physics, vol. 102, n/a, December 6, 2007, pp. 113306-113310; Journal Volume: 102

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  • Report No.: UCRL-JRNL-228792
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 923109
  • Archival Resource Key: ark:/67531/metadc899913

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  • February 21, 2007

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  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 23, 2016, 6:04 p.m.

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Lauer, E J. ELECTRON AVALANCHE MODEL OF DIELECTRIC-VACUUM SURFACE BREAKDOWN, article, February 21, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc899913/: accessed October 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.