Author: Montesinos, E.
Paper Title Page
WEPMB058 LHC Crab Cavity Coupler Test Boxes 2248
  • J.A. Mitchell
    Lancaster University, Lancaster, United Kingdom
  • R. Apsimon, G. Burt, A.R.J. Tutte
    Cockcroft Institute, Lancaster University, Lancaster, United Kingdom
  • R. Calaga, A. Macpherson, E. Montesinos
    CERN, Geneva, Switzerland
  • S.D. Silva
    ODU, Norfolk, Virginia, USA
  • B. P. Xiao
    BNL, Upton, Long Island, New York, USA
  The LHC double quarter wave (DQW) crab cavities have two different types of Higher Order Mode (HOM) couplers in addition to a fundamental power coupler (FPC). The FPC requires conditioning, so to achieve this we have designed a radio-frequency (RF) quarter wave resonator to provide high transmission between two opposing FPCs. For the HOM couplers we must ensure that the stop-band filter is positioned at the cavity frequency and that peak transmission occurs at the same frequencies as the strongest HOMs. We have designed two test boxes which preserve the cavity spectral response in order to test the couplers.  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPMB058  
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