• DocumentCode
    227545
  • Title

    Barium evaporation and film degradation of osmium-coated cathode

  • Author

    Cheng Cheng ; Ji Li ; Zhiqiang Yu

  • Author_Institution
    Beijing Vacuum Electron. Res. Inst., Beijing, China
  • fYear
    2014
  • fDate
    June 30 2014-July 4 2014
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    This paper describes the experiments for the evaporation and film degradation of osmium-coated cathode. Evaporating rate and under-heated characters were tested, and SEM & EDS were used. Barium evaporation is the main factor of cathode life degradation under 1080 C. The model of failure caused by evaporation was established.
  • Keywords
    barium; cathodes; coatings; osmium; scanning electron microscopy; vacuum deposition; Ba; EDS; Os; SEM; barium evaporation; film degradation; osmium-coated cathode; Barium; Cathodes; Degradation; Films; Morphology; Surface morphology; Surface treatment;
  • 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.2014.6892114
  • Filename
    6892114
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=227545