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High-current Penning discharge with self-heated cathode

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Abstract

A theoretical model of self-sustained Penning (reflective) discharge is formulated based on the equation of continuity of the electron flow and the equation of energy balance on the cathode. Using the proposed theory, it is possible to calculate the current-voltage characteristic of a high-current reflective discharge with self-heated cathode in a broad range of discharge cell dimensions, magnetic fields, and electron work functions of the cathode materials. The theory predicts two regimes of discharge operation with thermionic emission from the cathode: (i) a low-voltage regime with a high current density and (ii) a high-voltage regime with a significantly lower current density. An advantage of the developed theory is that, in the limiting case, it also describes the operation of normal cold cathode reflective discharge.

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Authors and Affiliations

  1. Institute of High-Current Electronics, Siberian Division, Russian Academy of Sciences, Tomsk, Russia

    L. A. Zyul’kova, A. V. Kozyrev & D. I. Proskurovsky

Authors
  1. L. A. Zyul’kova
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  2. A. V. Kozyrev
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  3. D. I. Proskurovsky
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 30, No. 16, 2004, pp. 19–25.

Original Russian Text Copyright © 2004 by Zyul’kova, Kozyrev, Proskurovsky.

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Zyul’kova, L.A., Kozyrev, A.V. & Proskurovsky, D.I. High-current Penning discharge with self-heated cathode. Tech. Phys. Lett. 30, 672–674 (2004). https://doi.org/10.1134/1.1792309

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  • DOI: https://doi.org/10.1134/1.1792309

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