Research Catalog

  • Microanalysis of extended-test xenon hollow cathodes [microform] / Timothy R. Verhey and Michael J. Patterson.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va. : For sale by the National Technical Information Service, 1991]
    • 1991
  • Requirements for long-life operation of inert gas hollow cathodes--preliminary report [microform] / Timothy R. Verhey and Gregory S. MacRae.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the National Technical Information Service, 1990]
    • 1990

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