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TY - CONF AU - Castilla, A. AU - Ben-Zvi, I. AU - Burt, G. AU - Calaga, R. AU - Capatina, O. AU - Dr. Schirm, K.M. AU - Hernández-Chahín, K.G. AU - Macpherson, A. AU - Mitchell, J.A. AU - Shipman, N.C. AU - Turaj, K. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - First RF Performance Results for the DQW Crab Cavities to be Tested in the CERN SPS J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - As part of the High Luminosity LHC (HL-LHC) project strategy, crab cavity correctors shall be installed around CMS and ATLAS experiments of the LHC. To accommodate the different crossing angle planes, two distinct cavity designs have been selected: the RF Dipole (RFD) and the Double Quarter Wave resonator (DQW). CERN has fabricated two double quarter wave resonators (DQW_{S}PS), for validation with a proton beam at the CERN SPS accelerator. Standard superconducting rf surface preparation protocols have been applied to the two bulk niobium cavities, followed by cryogenic testing in a vertical cryostat at CERN's SM18 facility. The performance results obtained after the first bare cavity tests for cavities DQW_{S}PS₀01 and DQW_{S}PS₀02 are shown in this paper, and include Q0 vs Vt curves, Lorentz Force Detuning (LFD) analyses and pressure sensitivity of a higher order mode. PB - JACoW CP - Geneva, Switzerland SP - 1077 EP - 1080 KW - cavity KW - SRF KW - monitoring KW - operation KW - cryomodule DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-MOPVA095 UR - http://jacow.org/ipac2017/papers/mopva095.pdf ER -