Paper | Title | Page |
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WEPEC084 | Higher Order Mode Properties of Superconducting Parallel-Bar Cavities | 3075 |
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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). |