• DocumentCode
    3556480
  • Title

    Tunnel emittance growth in PPM focussed TWT´s

  • Author

    True, Richard

  • Author_Institution
    Litton Systems, San Carlos, California
  • Volume
    31
  • fYear
    1985
  • fDate
    1985
  • Firstpage
    192
  • Lastpage
    195
  • Abstract
    It is well known that beam sticks and short tubes focus better than long tubes. In the past, it has been assumed that magnetic field asymmetries and mechanical tolerances are the root cause. This paper presents another reason for the worsening of transmission with tube length, namely, that it is due to tunnel emittance growth inherent in the beam.
  • Keywords
    Circuits; Current density; Filling; Minimization; Particle beam injection; Particle beams; Plasma density; Plasma waves; Shape; Space charge;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electron Devices Meeting, 1985 International
  • Type

    conf

  • DOI
    10.1109/IEDM.1985.190927
  • Filename
    1485477