• DocumentCode
    572070
  • Title

    Design and evaluation of the XBT diode

  • Author

    Wright, Edward L. ; Vlieks, Arnold ; Fant, Karen ; Pearson, Chris ; Koontz, Ron ; Jensen, Dave ; Miram, George

  • Author_Institution
    Stanford Linear Accel. Center, Stanford Univ., Stanford, CA, USA
  • Volume
    2
  • fYear
    1992
  • fDate
    25-29 May 1992
  • Firstpage
    1147
  • Lastpage
    1152
  • Abstract
    This paper describes the design and experimental results achieved with the 440 kV, microperveance 1.9, XBT (X-band Beam Tester) diode. The Pierce gun was developed for the 100 MW X-band klystron; the high power RF source to be used on the NLC (Next Linear Collider). The gun is electrostatically focused (no magnetic compression) to a beam diameter of 6.35 mm, with an area convergence of 110:1. Maximum cathode loading is approximately 25 A/cm2, with a beam power density of 770 MW/cm2. The measured beam current was within 2% of the value predicted by simulation with egun. Transmission through the highly instrumented beam tester was 99.98%. Some novel techniques were used to achieve near perfect beam transmission, which include the use of a reentrant-floating input pole piece.
  • Keywords
    Cathodes; Current measurement; Klystrons; Magnetic field measurement; Solenoids;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    High-Power Particle Beams, 1992 9th International Conference on
  • Conference_Location
    Washington, DC, USA
  • Print_ISBN
    000-0-0000-0000-0
  • Type

    conf

  • Filename
    6306631