• DocumentCode
    2381017
  • Title

    Longitudinal impedance of a smooth toroidal chamber at low and intermediate frequencies

  • Author

    Ng, King-yuenn ; Arnock, Robertw

  • Author_Institution
    Lawrence Berkeley Lab., CA, USA
  • fYear
    1989
  • fDate
    20-23 Mar 1989
  • Firstpage
    798
  • Abstract
    The authors evaluate the longitudinal coupling impedance of a toroidal chamber with rectangular cross section in the frequency domain below the synchronous resonant modes. With infinite wall conductivity the impedance is purely reactive and consists of a space charge term, proportional to γ-2, and a curvature term which survives at large γ. The curvature term is well represented as a quadratic function of frequency. Consequences for beam stability, if any, arise from high-frequency resonances, which can produce values of several ohms for Z/n
  • Keywords
    particle beam diagnostics; beam stability; curvature term; high-frequency resonances; infinite wall conductivity; intermediate frequencies; longitudinal coupling impedance; low frequencies; rectangular cross section; smooth toroidal chamber; space charge term; Conductivity; Damping; Frequency domain analysis; Impedance; Laboratories; Linear accelerators; Resonance; Resonant frequency; Space charge; Stability;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE
  • Conference_Location
    Chicago, IL
  • Type

    conf

  • DOI
    10.1109/PAC.1989.73253
  • Filename
    73253