• DocumentCode
    3569885
  • Title

    Thermionic emission of a novel cathode applied in high-power continuous wave magnetron tubes

  • Author

    Shikai Qi ; Xiaoxia Wang ; Jirun Luo ; Mingwei Hu ; Qinglan Zhao ; Yun Li ; Qi Zhang

  • Author_Institution
    Key Lab. of High Power Microwave Sources & Technol., Inst. of Electron., Beijing, China
  • fYear
    2015
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    In order to enhance output power and prolong lifetime of the high-power continuous wave magnetron tubes, a novel La2Zr2O7 impregnated cathode is adopted to enhance the thermionic emission. In this abstract, we compare the thermionic emission ability of this cathode with traditional pure W filament cathode. Experimental results show that this cathode can provide the same thermionic emission with at least 300 ° lower than pure W filament cathode.
  • Keywords
    cathodes; lanthanum compounds; magnetrons; thermionic emission; tungsten; La2Zr2O7; W; filament cathode; high-power continuous wave magnetron tubes; impregnated cathode; thermionic emission; Cathodes; Electron emission; Electron tubes; Lanthanum; Power generation; Thermionic emission; Zirconium; alloy cathode; lifetime; resistive electron and ion bombing; thermionic emission; thermostability;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Vacuum Electronics Conference (IVEC), 2015 IEEE International
  • Print_ISBN
    978-1-4799-7109-1
  • Type

    conf

  • DOI
    10.1109/IVEC.2015.7223864
  • Filename
    7223864
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3569885