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Zed Atlee

Deceased

from Portland, OR

Zed Atlee Phones & Addresses

  • Portland, OR

Us Patents

  • X-Ray Tube Having Focusing Cup With Non-Emitting Coating

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  • US Patent:
    RE300829, Aug 21, 1979
  • Filed:
    Jan 27, 1977
  • Appl. No.:
    5/645835
  • Inventors:
    Zed J. Atlee - Tigard OR
    Roy F. Kasten - Elmhurst IL
  • Assignee:
    Picker Corporation - Cleveland OH
  • International Classification:
    H01J 3500
  • US Classification:
    313 57
  • Abstract:
    An x-ray tube is described including a focusing cup electrode coated with a high work function material, such as platinum or gold, to prevent the field emission of electrons from such cup. The method of applying the non-emitting coating is preferably sputtering or ion plating, but may also be electroplating followed by vacuum fusion in the case of gold or other low melting point metals.

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