A model of electron emission from a wedge in the space-charge-limited current regime |
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| Authors: | G. Sh. Boltachev N. M. Zubarev |
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| Affiliation: | (1) Institute of Electrophysics, Ural Division, Russian Academy of Sciences, Yekaterinburg, Russia |
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| Abstract: | The process of electron emission from a wedge-shaped cathode in the space-charge-limited current regime has been theoretically studied. The field distribution in the interelectrode gap is described using a simple analytical model, which is based on the matching of self-similar solutions for electron flows at the vertex region and at the periphery. The dependence of the perveance on the wedge angle in the wedge cathode-flat anode system is determined. |
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