Current interruption in a low-pressure high-current pulsed discharge with hollow cathode

Y. D. Korolev, N. V. Landl, V. G. Geyman, O. B. Frants, A. V. Bolotov, V. O. Nekhoroshev, V. S. Kasyanov

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    This paper deals with the investigation of current interruption in the hollow-cathode discharge as applied to the electrode configuration of pseudospark switch. The phenomenon of interruption manifests itself at currents of several kiloamperes or higher and at a low gas pressure. It is demonstrated that the region of the hollow cathode is able to pass a high current density. The region that is responsible for the current interruption is the main gap of the switch, i.e., the positive column of discharge. The theoretical model of the positive column is proposed. The model implies that the gas ionization in the column is provided by the fast electrons which are accelerated in a double electric layer at the exit of cathode cavity. The estimates with a usage of the model are in agreement with the experimental data.

    Original languageEnglish
    Article number012019
    JournalJournal of Physics: Conference Series
    Volume552
    Issue number1
    DOIs
    Publication statusPublished - 2014

    Fingerprint

    interruption
    hollow cathodes
    high current
    low pressure
    switches
    gas ionization
    gas pressure
    cathodes
    current density
    cavities
    electrodes
    estimates
    configurations
    electrons

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Korolev, Y. D., Landl, N. V., Geyman, V. G., Frants, O. B., Bolotov, A. V., Nekhoroshev, V. O., & Kasyanov, V. S. (2014). Current interruption in a low-pressure high-current pulsed discharge with hollow cathode. Journal of Physics: Conference Series, 552(1), [012019]. https://doi.org/10.1088/1742-6596/552/1/012019

    Current interruption in a low-pressure high-current pulsed discharge with hollow cathode. / Korolev, Y. D.; Landl, N. V.; Geyman, V. G.; Frants, O. B.; Bolotov, A. V.; Nekhoroshev, V. O.; Kasyanov, V. S.

    In: Journal of Physics: Conference Series, Vol. 552, No. 1, 012019, 2014.

    Research output: Contribution to journalArticle

    Korolev, YD, Landl, NV, Geyman, VG, Frants, OB, Bolotov, AV, Nekhoroshev, VO & Kasyanov, VS 2014, 'Current interruption in a low-pressure high-current pulsed discharge with hollow cathode', Journal of Physics: Conference Series, vol. 552, no. 1, 012019. https://doi.org/10.1088/1742-6596/552/1/012019
    Korolev, Y. D. ; Landl, N. V. ; Geyman, V. G. ; Frants, O. B. ; Bolotov, A. V. ; Nekhoroshev, V. O. ; Kasyanov, V. S. / Current interruption in a low-pressure high-current pulsed discharge with hollow cathode. In: Journal of Physics: Conference Series. 2014 ; Vol. 552, No. 1.
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    AU - Landl, N. V.

    AU - Geyman, V. G.

    AU - Frants, O. B.

    AU - Bolotov, A. V.

    AU - Nekhoroshev, V. O.

    AU - Kasyanov, V. S.

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