• DocumentCode
    625965
  • Title

    A new impregnated dispenser cathode

  • Author

    Shengyi Yin ; Zhen Peng ; Qiang Zheng ; Yu Wang ; Xinxin Wang ; Yang Li

  • Author_Institution
    Key Lab. of High Power Microwave Sources & Technol., Inst. of Electron., Beijing, China
  • fYear
    2013
  • fDate
    21-23 May 2013
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    We put forward a new type impregnated dispenser cathode, which impregnates the active salt of BaO/SrO/Sc2O3. At 1100□B, the pulse current density of the cathode is up to 86.2A/cm2, 2.7 times of the value of a traditional M-type cathode. It is proposed that, the emission of pores and pore edges caused by Sc2O3 and SrO is the main reason that the new cathode has excellent emission performance.
  • Keywords
    barium compounds; cathodes; current density; scandium compounds; strontium compounds; BaO-SrO-Sc2O3; M-type cathode; active salt impregnation; impregnated dispenser cathode; pore edge emission; pulse current density; Cathodes; Current density; Films; Microwave devices; Performance evaluation; Temperature measurement; M-type cathode; Sc2O3; SrO; dispenser cathode; emission performance;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International
  • Conference_Location
    Paris
  • Print_ISBN
    978-1-4673-5976-4
  • Type

    conf

  • DOI
    10.1109/IVEC.2013.6570908
  • Filename
    6570908
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=625965