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TY - CPAPER AU - Hernández-Chahín, K.G. AU - Burt, G. AU - Christophe, C. AU - De Silva, S.U. AU - Macpherson, A. AU - Navarro-Tapia, M. AU - Torres-Sanchez, R. AU - Tutte, A.R.J. AU - Verdú-Andrés, S. TI - Performance Evaluation of HL-LHC Crab Cavity Prototypes in a CERN Vertical Test Cryostat J2 - Proc. of International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 AB - Three proof-of-principle compact crab cavity designs have been fabricated in bulk niobium and cold tested at their home labs, as a first validation step towards the High Luminosity LHC project. As a cross check, all three bare cavities have been retested at CERN, in order to cross check their performance, and cross-calibrate the CERN SRF cold test facilities. While achievable transverse deflecting voltage is the key performance indicator, secondary performance aspects derived from multiple cavity monitoring systems are also discussed. Temperature mapping profiles, quench detection, material properties, and trapped magnetic flux effects have been assessed, and the influence on performance discussed. The significant effort invested in developing expertise in preparation and testing of these crab cavities has already been fruitful for all partners, and more is to come within this ongoing program. PB - JACoW CY - Geneva, Switzerland SP - 1210 EP - 1214 KW - cavity KW - SRF KW - monitoring KW - HOM KW - electron DA - 2015/12 PY - 2015 SN - 978-3-95450-178-6 DO - 10.18429/JACoW-SRF2015-THPB050 UR - http://srf2015.vrws.de/papers/thpb050.pdf ER -