Title |
First RF Performance Results for the DQW Crab Cavities to be Tested in the CERN SPS |
Authors |
- A. Castilla, R. Calaga, O. Capatina, K.M. Dr. Schirm, K.G. Hernández-Chahín, A. Macpherson, N.C. Shipman, K. Turaj
CERN, Geneva, Switzerland
- I. Ben-Zvi
BNL, Upton, Long Island, New York, USA
- G. Burt, J.A. Mitchell
Lancaster University, Lancaster, United Kingdom
- K.G. Hernández-Chahín
DCI-UG, León, Mexico
- N.C. Shipman
Cockcroft Institute, Lancaster University, Lancaster, United Kingdom
- N.C. Shipman
UMAN, Manchester, United Kingdom
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Abstract |
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.
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Paper |
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Conference |
IPAC2017, Copenhagen, Denmark |
Series |
International Particle Accelerator Conference (8th) |
Proceedings |
Link to full IPAC2017 Proccedings |
Session |
Posters Monday 3 |
Date |
15-May-17 16:00–18:00 |
Main Classification |
07 Accelerator Technology |
Sub Classification |
T07 Superconducting RF |
Keywords |
cavity, SRF, monitoring, operation, cryomodule |
Publisher |
JACoW, Geneva, Switzerland |
Editors |
Volker RW Schaa (GSI, Darmstadt, Germany); Gianluigi Arduini (CERN, Geneva, Switzerland); Juliana Pranke (ESS, Lund, Sweden); Mike Seidel (PSI, Villigen, Switzerland); Mats Lindroos (ESS, Lund, Sweden) |
ISBN |
978-3-95450-182-3 |
Published |
May 2017 |
Copyright |
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