The NEXT ion thruster is a low specific mass, high performance thruster with a nominal throttling range of 0.5 to 7 kW. Numerous engineering model and one prototype model thrusters have been manufactured and tested. Of significant importance to propulsion system performance is thruster-to-thruster performance dispersions. This type of information can provide a bandwidth of expected performance variations both on a thruster and a component level. Knowledge of these dispersions can be used to more conservatively predict thruster service life capability and thruster performance for mission planning, facilitate future thruster performance comparisons, and verify power processor capabilities are compatible with the thruster design. This study compiles the test results of five engineering model thrusters and one flight-like thruster to determine unit-to-unit dispersions in thruster performance. Component level performance dispersion analyses will include discharge chamber voltages, currents, and losses; accelerator currents, electron backstreaming limits, and perveance limits; and neutralizer keeper and coupling voltages and the spot-to-plume mode transition flow rates. Thruster level performance dispersion analyses will include thrust efficiency.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    NEXT Ion Thruster Performance Dispersion Analyses


    Beteiligte:
    G. C. Soulas (Autor:in) / M. J. Patterson (Autor:in)

    Erscheinungsdatum :

    2008


    Format / Umfang :

    20 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    NEXT Ion Thruster Performance Dispersion Analyses

    Soulas, George / Patterson, Michael | AIAA | 2007


    NEXT Ion Thruster Performance Dispersion Analyses

    Soulas, George C. / Patterson, Michael J. | NTRS | 2008


    NEXT Ion Thruster Performance Dispersion Analyses AIAA Paper

    Soulas, G. / Patterson, M. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2007



    NEXT Study of Thruster Extended-Performance (NEXT STEP)

    Patterson, M. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2006