In this paper we apply results from the extensive traveling wave tube vacuum barium impregnated cathode literature to the hollow cathodes used in ion thrusters. We show that the observed space station cathode life is in general agreement with published barium evaporation rates.


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    Title :

    Model of hollow cathode operation and life limiting mechanisms


    Contributors:
    Katz, I. (author) / Anderson, J. R. (author) / Polk, J. E. (author) / Goebel, D. M. (author)

    Conference:

    28th International Electric Propulsion Conference


    Publication date :

    2003-03-17


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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