Analysis of damping requirements for dipole wake-fields in RF crab cavities

G. Burt, R. M. Jones, A. Dexter

    Research output: Contribution to journalArticlepeer-review


    Several current particle-antiparticle collider designs require the beams to collide at a small angle. In order to make the luminosity comparable to that of beams colliding head-on, transverse deflecting cavities known as crab cavities will be used. Additional modes, other than the required "crabbing" mode are excited by the beam and if these are excited resonantly then an appreciable dilution of the beam emittance will occur. We provide a single-mode analysis of the damping requirements on the dipole modes which will minimize the resulting angular kicks to the beams, by deriving an explicit solution for the frequency offset of the mode from a bunch harmonic for maximum deflection of bunches, using a novel analytical technique. © 2007 IEEE.
    Original languageEnglish
    Pages (from-to)1728-1734
    Number of pages6
    JournalIeee Transactions on Nuclear Science
    Issue number5
    Publication statusPublished - Oct 2007


    • Accelerator cavities
    • Accelerator RF systems
    • Accelerators
    • Particle beam dynamics
    • Particle beam stability


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