• DocumentCode
    1152750
  • Title

    Thermionic sources for high-brightness electron beams

  • Author

    Thomas, Richard E. ; Gibson, John W. ; Haas, George A. ; Abrams, R.H., Jr.

  • Author_Institution
    US Naval Res. Lab., Washington, DC, USA
  • Volume
    37
  • Issue
    3
  • fYear
    1990
  • fDate
    3/1/1990 12:00:00 AM
  • Firstpage
    850
  • Lastpage
    861
  • Abstract
    The capabilities and limitations of modern thermionic electron sources for producing high-emission-density (>10 A/cm2) high-brightness beams are surveyed. The emphasis is on dispenser cathodes. The fabrication techniques and operating mechanisms that determine the operating limitations of existing commercial cathodes are discussed. In addition, cathode improvements that have been demonstrated in various prototype structures are described
  • Keywords
    electron beams; electron tube manufacture; thermionic cathodes; dispenser cathodes; electron beams; fabrication techniques; high-brightness beams; high-emission-density; operating mechanisms; prototype structures; thermionic electron sources; Cathodes; Current density; Electron beams; Electron devices; Electron emission; Electron sources; Fabrication; Laboratories; Thermionic emission; Tungsten;
  • fLanguage
    English
  • Journal_Title
    Electron Devices, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9383
  • Type

    jour

  • DOI
    10.1109/16.47802
  • Filename
    47802
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1152750