In a proof-of-principle effort to demonstrate the feasibility of magnetically shielded (MS) Hall thrusters, an existing laboratory thruster has been modified with the guidance of physics-based numerical simulation. When operated at a discharge power of 6-kilowatts the modified thruster has been designed to reduce the total energy and flux of ions to the channel insulators by greater than 1 and greater than 3 orders of magnitude, respectively. The erosion rates in this MS thruster configuration are predicted to be at least 2-4 orders of magnitude lower than those in the baseline (BL) configuration. At such rates no detectable erosion is expected to occur.


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    Title :

    Design of a Laboratory Hall Thruster with Magnetically Shielded Channel Walls, Phase I: Numerical Simulations


    Contributors:

    Conference:

    AIAA/ASME/SAE/ASEE Joint Propulsion Conference ; 2011 ; San Diego, CA, United States


    Publication date :

    2011-07-31


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English





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