• DocumentCode
    227451
  • Title

    An abnormal thermal field emission high brightness and stability point electron source

  • Author

    Ptitsin, Valery E.

  • Author_Institution
    Inst. for Anal. Instrum., St. Petersburg, Russia
  • fYear
    2014
  • fDate
    June 30 2014-July 4 2014
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    A study of the thermal field electron emission from a thin dielectric (ZrO2) layers at the needle - shaped W and Mo microcrystals have shown that the emission process behavior does not agree with the classical theory. The phenomenon studied was called the abnormal thermal field emission (ATFE). It has been found that normalized brightness of the ATFE electron sources are two orders of magnitude higher then well known ZrO/W<;100> Schottky cathodes.
  • Keywords
    electron field emission; electron sources; molybdenum; tungsten; zirconium compounds; ZrO2-Mo; ZrO2-W; abnormal thermal field emission; needle-shaped Mo microcrystal; needle-shaped W microcrystal; normalized brightness; stability point electron source; thermal field electron emission; thin dielectric zirconia layers; Brightness; Cathodes; Dielectrics; Electron emission; Needles; Physics; Thermal stability;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Vacuum Electron Sources Conference (IVESC), 2014 Tenth International
  • Conference_Location
    St. Petersburg
  • Print_ISBN
    978-1-4799-5770-5
  • Type

    conf

  • DOI
    10.1109/IVESC.2014.6892064
  • Filename
    6892064
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=227451