• DocumentCode
    2900475
  • Title

    Practical ferroelectric cathode

  • Author

    Zheng, Shuxin ; Li, Wenjun ; Tang, Chuanxiang ; Li, Quanfeng ; Gao, Jianjiang ; Zhang, Qinghui

  • Author_Institution
    Dept. of Eng. Phys., Tsinghua Univ., Beijing, China
  • fYear
    2004
  • fDate
    6-10 Sept. 2004
  • Firstpage
    186
  • Abstract
    Summary form only given. Ferroelectric cathodes have the advantages of high luminance, high current density and low emittance. But the high current experiments show fast deterioration of the emission properties. We found that the emission current density is lower (<1 A/cm2) if we lower the driving voltage, but the lifetime of ferroelectric cathodes is extended extremely. So we propose a practical ferroelectric cathode electron gun which can operate under low vacuum (0.1 Pa) and low temperature (300K).
  • Keywords
    cathodes; electron emission; ferroelectric devices; 300 K; current density; electron gun; emission properties; ferroelectric cathode; luminance; Cathodes; Current density; Electrons; Ferroelectric materials; Physics; Temperature; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Vacuum Electron Sources Conference, 2004. Proceedings. IVESC 2004. The 5th International
  • Print_ISBN
    0-7803-8437-7
  • Type

    conf

  • DOI
    10.1109/IVESC.2004.1414187
  • Filename
    1414187
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2900475