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Cold emitter x-ray tube incorporating a nanostructured carbon film electron emitter

  • US 20030002627A1
  • Filed: 08/20/2002
  • Published: 01/02/2003
  • Est. Priority Date: 09/28/2000
  • Status: Abandoned Application
First Claim
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18. An x-ray generating device, comprising:

  • a vacuum x-ray tube, said vacuum x-ray tube having a nanostructured carbon film as a cathode electron emission source secured within said vacuum x-ray tube, said nanostructured carbon film being selected from the group consisting of nanocyrstalline graphite, carbon nanotubes, diamond, diamond like carbon, or a composite of two or more of members of the group;

    means for generating an electric field within said vacuum x-ray tube;

    target means for generating x-rays operably positioned within said vacuum x-ray tube; and

    voltage generation means for generating a voltage, said voltage generation means being operably linked to said nanostructured carbon film and said target means.

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