• DocumentCode
    3219010
  • Title

    Electron emission phenomenon of cathode evaporator

  • Author

    Yang Jing-xin ; Yin Sheng-yi ; Zhang Hong-lai ; Wang Yu ; Wang Xin-Xin

  • Author_Institution
    Key Lab. of High Power Microwave Sources & Technol., Chinese Acad. of Sci., Beijing, China
  • fYear
    2010
  • fDate
    14-16 Oct. 2010
  • Firstpage
    197
  • Lastpage
    198
  • Abstract
    In order to study the electron emission phenomenon of evaporator of an impregnated cathode, a special device is designed, which includes barium tungsten cathode, tungsten receiver, vacuum system, data acquisition unit, etc. The characteristics of the impregnated cathode are as follows: Φ 8.0 mm x 2.5 mm, 25% porosity of porous tungsten matrix, 6BaO/CaO/2Al2O3 impregnant. While the tungsten receiver cathode is a polished polycrystalline tungsten wafer with the size of Φ 3.5 mm x 1.0 mm. The relative distance between the two cathodes is 1.0 mm.
  • Keywords
    barium; electron emission; polishing; porosity; porous materials; tungsten; Ba; W; barium tungsten cathode; cathode evaporator; data acquisition unit; electron emission phenomenon; impregnated cathode; polished polycrystalline tungsten wafer; porosity; porous tungsten matrix; tungsten receiver cathode; vacuum system;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Vacuum Electron Sources Conference and Nanocarbon (IVESC), 2010 8th International
  • Conference_Location
    Nanjing
  • Print_ISBN
    978-1-4244-6645-0
  • Type

    conf

  • DOI
    10.1109/IVESC.2010.5644339
  • Filename
    5644339
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3219010