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Makarov, V.A.

Paper Title Page
MOP083 Analysis of Input Coupler Asymmetry Influence on Beam Dynamics in Accelerators with Superconducting Cavities 269
  • N.P. Sobenin, S.V. Kutsaev, M.V. Lalayan, V.A. Makarov
    MEPhI, Moscow
  • A.A. Krasnov
    ScanTech, Atlanta, Georgia
  • V.I. Shvedunov
    MSU, Moscow
  • A.A. Zavadtsev
    Introscan, Moscow

Analysis of input coupler asymmetry influence on beam dynamics in superconducting cavities of Energy Recovery Linac (ERL) injector is presented. Both coaxial and waveguide, single and twin input couplers were analyzed. Using computer simulation electromagnetic fields distribution in accelerating cavity was obtained and recalculated to the transverse-kick to the bunch passing the coupler. Also calculation of external coupling was done. RTMTRACE code was adapted for particle beams dynamic simulation. Acceptable transverse emittance growth was achieved for twin-coaxial (4%) and waveguide (5%) input coupler designs.


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