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De Silva, S.U.

Paper Title Page
WEPEC084 Higher Order Mode Properties of Superconducting Parallel-Bar Cavities 3075
 
  • S.U. De Silva, J.R. Delayen
    ODU, Norfolk, Virginia
  • S.U. De Silva
    JLAB, Newport News, Virginia
 
 

The superconducting parallel-bar cavity* has properties that makes it attractive as a deflecting or crabbing rf structure. For example it is under consideration as an rf separator for the Jefferson Lab 12 GeV upgrade and as a crabbing structure for a possible LHC luminosity upgrade. Initial cavity shape optimization has been performed to obtain a high transverse deflecting voltage with low surface fields. We present here a study of the Higher Order Mode (HOM) properties of this structure. Frequencies, R/Q and field profiles of HOMs have been evaluated and are reported.


* J.R. Delayen and H. Wang, Phys. Rev. ST Accel. Beams 12, 062002 (2009).