CERN Accelerating science

Published Articles
Report number CERN-ACC-2016-226
Title LHC Crab Cavity Coupler Test Boxes
Author(s) Mitchell, James (Lancaster U.) ; Apsimon, Robert (Lancaster U.) ; Burt, Graeme (Lancaster U.) ; Calaga, Rama (CERN) ; Macpherson, Alick (CERN) ; Montesinos, Eric (CERN) ; Silva, Subashini (Old Dominion U.) ; Tutte, Adam (Lancaster U.) ; Xiao, Binping (RIKEN BNL)
Publication 2016
Number of pages 3
In: 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.WEPMB058
DOI 10.18429/JACoW-IPAC2016-WEPMB058
Subject category Accelerators and Storage Rings
Abstract 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.
Copyright/License publication: © 2016-2024 The Author(s) (License: CC-BY-3.0)

Corresponding record in: Inspire


 Record created 2016-08-12, last modified 2022-08-10


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