• DocumentCode
    3557167
  • Title

    Life test results of various impregnated cathode types

  • Author

    Shroff, A.M. ; Tonnerre, J.C. ; Brion, D.

  • Author_Institution
    THOMSON-CSF, Boulogne-Billancourt, France
  • Volume
    33
  • fYear
    1987
  • fDate
    1987
  • Firstpage
    693
  • Lastpage
    696
  • Abstract
    To ascertain the electron emission properties of impregnated cathodes, long-term tests in diodes at various loads and temperatures are performed. A test program of S, M, mixed matrix, coated mixed matrix and reservoir type cathodes was started in 1980. A test vehicle was developped which consists of a closely-spaced space gridded anode diode allowing the measure at regular intervals of time, JN, Joand φo. More than 2,000,000 hours of cumulated life test results have been obtained with an average of 20,000 hours for the latest diodes and more than 60,000 hours for the oldest ones.
  • Keywords
    Anodes; Cathodes; Diodes; Electron emission; Extraterrestrial measurements; Life testing; Performance evaluation; Reservoirs; Space vehicles; Temperature;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electron Devices Meeting, 1987 International
  • Type

    conf

  • DOI
    10.1109/IEDM.1987.191524
  • Filename
    1487482
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3557167