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Thermal losses in couplers and ports of a SPS Double-Quarter Wave Crab Cavity
/ Verdú-Andrés, Silvia (RIKEN BNL) ; Belomestnykh, Sergey (RIKEN BNL ; SUNY, Stony Brook) ; Burt, Graeme (Lancaster U.) ; Calaga, Rama (CERN) ; Capatina, Ofelia (CERN) ; Carra, Federico (CERN ; INFM, Turin) ; Jones, Thomas (Daresbury) ; Li, Zenghai (SLAC) ; Wu, Qiong (RIKEN BNL) ; Xiao, Binping (RIKEN BNL) et al.
The Double-Quarter Wave Crab Cavity for beam tests at SPS will be equipped with a Fundamental Power Coupler (FPC), three HOM filters and one pickup. FPC and HOM couplers are located in high magnetic field region and have a hook shape. [...]
2015 - 3 p.
- Published in : 10.18429/JACoW-SRF2015-THPB052
Fulltext: PDF;
In : 17th International Conference on RF Superconductivity, Whistler, Canada, 13 - 18 Sep 2015, pp.THPB052
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Cryogenic RF performance of double-quarter wave cavities equipped with HOM filters
/ Verdú-Andrés, Silvia (Brookhaven Natl. Lab.) ; Ben-Zvi, Ilan (Stony Brook U. ; Brookhaven Natl. Lab.) ; Burt, Graeme (Lancaster U. ; Daresbury) ; Calaga, Rama (CERN) ; Capatina, Ofelia (CERN) ; Huque, Naeem (Jefferson Lab) ; Li, Zenghai (SLAC) ; McEwen, Anne (Jefferson Lab) ; Mitchell, James (Lancaster U.) ; Park, HyeKyoung (Jefferson Lab) et al.
Crab cavities are one of the several components included in the luminosity upgrade of the Large Hadron Collider (HL-LHC). The cavities have to provide a nominal deflecting kick of 3.4 MV per cavity while the cryogenic load per cavity stays below 5 W. [...]
CERN-ACC-2019-221.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPRB098
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPRB098
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Effect of Beam-Loading on the Breakdown Rate of High Gradient Accelerating Structures
/ Navarro Quirante, Jose Luis (CERN) ; Corsini, Roberto (CERN) ; Degiovanni, Alberto (CERN) ; Döbert, Steffen (CERN) ; Grudiev, Alexej (CERN) ; Kononenko, Oleksiy (CERN) ; McMonagle, Gerard (CERN) ; Rey, Stephane (CERN) ; Solodko, Anastasiya (CERN) ; Syratchev, Igor (CERN) et al.
The Compact Linear Collider (CLIC) is a study for a future room temperature electron-positron collider with a maximum center-of-mass energy of 3 TeV. To efficiently achieve such high energy, the project relies on a novel two beam acceleration concept and on high-gradient accelerating structures working at 100 MV/m. [...]
CERN-ACC-2014-401.-
2014 - 3 p.
- Published in : (2014) , pp. TUPP033
Fulltext: PDF; External link: JACoW server
In : 27th Linear Accelerator Conference, Geneva, Switzerland, 31 Aug - 5 Sep 2014, pp.TUPP033
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An Insight on the Thermal and Mechanical Numerical Evaluations for the High-Luminosity LHC Crab Cavities
/ Cano-Pleite, Eduardo (CERN) ; Amorim Carvalho, Alexandre (CERN) ; Artoos, Kurt (CERN) ; Calaga, Rama (CERN) ; Capatina, Ofelia (CERN) ; Capelli, Teddy (CERN) ; Carra, Federico (CERN) ; Dassa, Luca (CERN) ; Garlasché, Marco (CERN) ; Leuxe, Raphael (CERN) et al.
One of the key devices of the HL-LHC project are SRF crab cavities. A cryomodule with two Double Quarter Wave (DQW) crab cavities has been successfully fabricat-ed and tested with beam at CERN whereas the Radio Frequency Dipole (RFD) crab cavities are currently on its fabrication process. [...]
2019 - 6 p.
- Published in : (2019) , pp. 931-936
Fulltext: PDF;
In : 19th International Conference on RF Superconductivity, Dresden, Germany, 30 Jun - 05 Jul 2019, pp.931-936
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The SPS 200 MHz TWC impedance after the LIU upgrade
/ Roggen, Toon (CERN) ; Calaga, Rama (CERN) ; Caspers, Fritz (CERN) ; Kaltenbacher, Thomas (CERN) ; Vollinger, Christine (CERN)
As a part of the LHC Injectors Upgrade project (LIU) the 200 MHz Travelling Wave Cavities (TWC) of the Super Proton Synchrotron (SPS) will be upgraded. The two existing five-section cavities will be rearranged into four three-section cavities (using two existing spare sections), thereby increasing the total voltage from 7 MV (I$_{RF}$ = 1.5 A) to 10 MV (I$_{RF}$ = 3.0 A). [...]
2016 - 5 p.
- Published in : 10.18429/JACoW-HB2016-MOPR011
Fulltext: PDF;
In : 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams, Malmö, Sweden, 3 - 8 Jul 2016, pp.MOPR011
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Design of Crab Cavity Cryomodule for HL-LHC
/ Capelli, Teddy (CERN) ; Artoos, Kurt (CERN) ; Boucherie, Antoine (CERN) ; Brodzinski, Krzysztof (CERN) ; Calaga, Rama (CERN) ; Calvo, Sebastien (CERN) ; Cano-Pleite, Eduardo (CERN) ; Capatina, Ofelia (CERN) ; Carra, Federico (CERN) ; Dassa, Luca (CERN) et al.
Crab cavities are a key element to achieve the HL-LHC performance goals. There are two types of cavities Double Quarter Wave (DQW) for vertical crabbing, and Radiofrequency Dipole (RFD) for horizontal crabbing. [...]
SRF2019.-
2019 - 6 p.
- Published in : 10.18429/JACoW-SRF2019-MOP099
Fulltext: PDF;
In : 19th International Conference on RF Superconductivity, Dresden, Germany, 30 Jun - 05 Jul 2019, pp.320-325
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Multiphysics Simulations of the Wide Opened Waveguide Crab-cavity
/ Papke, Kai (CERN) ; Amorim Carvalho, Alexandre (CERN) ; Grudiev, Alexej (CERN) ; Zanoni, Carlo (CERN)
In the frame of a FCC study a first prototype of a compact superconducting crab-cavity, using Nb-on-Cu-coating technique is being manufactured and investigated. The design, which is based on the ridged waveguide resonator, is subjected to multipacting and pressure sensitivity simulations. [...]
2018 - 5 p.
- Published in : 10.18429/JACoW-SRF2017-MOPB017
External link: Fulltext
In : 18th International Conference on RF Superconductivity, Lanzhou, China, 17 - 21 Jul 2017, pp.MOPB017
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