Auxiliary glow discharge in the trigger unit of a hollow-cathode thyratron

Yury Dmitrievich Korolev, N. V. Landl, V. G. Geyman, O. B. Frants, I. A. Shemyakin, V. O. Nekhoroshev

    Research output: Contribution to journalArticle

    16 Citations (Scopus)

    Abstract

    Results from studies of a low-current glow discharge with a hollow cathode are presented. A specific feature of the discharge conditions was that a highly emissive tablet containing cesium carbonate was placed in the cathode cavity. In the absence of a tablet, the discharge ignition voltage was typically ≥3.5 kV, while the burning voltage was in the range of 500–600 V. The use of the tablet made it possible to decrease the ignition voltage to 280 V and maintain the discharge burning voltage at a level of about 130 V. A model of the current sustainment in a hollow-cathode discharge is proposed. Instead of the conventional secondary emission yield, the model uses a generalized emission yield that takes into account not only ion bombardment of the cathode, but also the emission current from an external source. The model is used to interpret the observed current−voltage characteristics. The results of calculations agree well with the experimental data. It is shown that, in some discharge modes, the external emission current from the cathode can reach 25% of the total discharge current.

    Original languageEnglish
    Pages (from-to)799-807
    Number of pages9
    JournalPlasma Physics Reports
    Volume42
    Issue number8
    DOIs
    Publication statusPublished - 1 Aug 2016

    Fingerprint

    hollow cathodes
    glow discharges
    actuators
    tablets
    cathodes
    electric potential
    ignition
    secondary emission
    low currents
    cesium
    bombardment
    carbonates
    cavities
    ions

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Physics and Astronomy (miscellaneous)

    Cite this

    Korolev, Y. D., Landl, N. V., Geyman, V. G., Frants, O. B., Shemyakin, I. A., & Nekhoroshev, V. O. (2016). Auxiliary glow discharge in the trigger unit of a hollow-cathode thyratron. Plasma Physics Reports, 42(8), 799-807. https://doi.org/10.1134/S1063780X16080055

    Auxiliary glow discharge in the trigger unit of a hollow-cathode thyratron. / Korolev, Yury Dmitrievich; Landl, N. V.; Geyman, V. G.; Frants, O. B.; Shemyakin, I. A.; Nekhoroshev, V. O.

    In: Plasma Physics Reports, Vol. 42, No. 8, 01.08.2016, p. 799-807.

    Research output: Contribution to journalArticle

    Korolev, YD, Landl, NV, Geyman, VG, Frants, OB, Shemyakin, IA & Nekhoroshev, VO 2016, 'Auxiliary glow discharge in the trigger unit of a hollow-cathode thyratron', Plasma Physics Reports, vol. 42, no. 8, pp. 799-807. https://doi.org/10.1134/S1063780X16080055
    Korolev YD, Landl NV, Geyman VG, Frants OB, Shemyakin IA, Nekhoroshev VO. Auxiliary glow discharge in the trigger unit of a hollow-cathode thyratron. Plasma Physics Reports. 2016 Aug 1;42(8):799-807. https://doi.org/10.1134/S1063780X16080055
    Korolev, Yury Dmitrievich ; Landl, N. V. ; Geyman, V. G. ; Frants, O. B. ; Shemyakin, I. A. ; Nekhoroshev, V. O. / Auxiliary glow discharge in the trigger unit of a hollow-cathode thyratron. In: Plasma Physics Reports. 2016 ; Vol. 42, No. 8. pp. 799-807.
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