Rotation symmetric magnetoplasmadynamic thrusters with self induced magnetic fields are investigated at higher current levels in a steady state operation mode. Three thruster development lines are followed: (a) watercooled nozzle type thrusters, (b) partly radiation cooled nozzle type thrusters, and (c) cylindrical watercooled thrusters. The goal to get 1 MW steady state power input could not be reached in the contract period because of two reasons: the heatflux into the nozzle throat of the investigated DT2 thruster got to unacceptable high values, which has to be overcome by a new construction and both for the nozzle type and cylindrical thrusters the cathode raised problems at high current densities: the thorium oxide agglomerates and the cathodes begin to melt out of their inner zones and become destroyed. Keywords: Steady state magnetoplasmadynamic thrusters; Electric propulsion; Cathodes.


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    Titel :

    High Power Steady State MPD Thruster


    Beteiligte:
    M. Auweter-Kurtz (Autor:in) / H. Kurtz (Autor:in) / W. Merke (Autor:in) / H. Schrade (Autor:in) / C. Sleziona (Autor:in)

    Erscheinungsdatum :

    1990


    Format / Umfang :

    71 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch







    Field coil for steady-state plasma thruster

    VAUDOLON JULIEN PIERRE ALAIN / GODARD LAURENT ALEXANDRE RENE | Europäisches Patentamt | 2022

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