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Design of a compact superconducting crab-cavity for LHC using Nb-on-Cu-coating technique
/ Grudiev, Alexej (CERN) ; Atieh, Said (CERN) ; Calaga, Rama (CERN) ; Calatroni, Sergio (CERN) ; Capatina, Ofelia (CERN) ; Carra, Federico (CERN) ; Favre, Gilles (CERN) ; Ferreira, Leonel (CERN) ; Poncet, Jean-Francois (CERN) ; Richard, Thibaut (CERN) et al.
The design of a compact superconducting crab-cavity for LHC using Nb-on-Cu-coating technique is presented. The cavity shape is based on the ridged waveguide resonator with wide open apertures to provide access to the inner surface of the cavity for coating. [...]
2015 - 5 p.
- Published in : 10.18429/JACoW-SRF2015-THPB048
Fulltext: PDF;
In : 17th International Conference on RF Superconductivity, Whistler, Canada, 13 - 18 Sep 2015, pp.THPB048
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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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HOM Couplers and RF Antennas for HL-LHC Crab Cavities: Developments for Manufacturing
/ Barrière, Simon (CERN) ; Atieh, Said (CERN) ; Bulat, Bartosz (CERN) ; Calaga, Rama (CERN) ; Calvo, Sebastien (CERN) ; Capatina, Ofelia (CERN) ; Demazière, Thomas (CERN) ; Favre, Gilles (CERN) ; Gallifa Terricabras, Adrià (CERN) ; Garlasché, Marco (CERN) et al.
Superconducting RF crab cavities are being manufactured as part of the High-Luminosity LHC project at CERN. Amongst its related ancillaries, radiofrequency HOM (High Order Modes) couplers and field antennas are essential for reaching nominal performance during operation with high energy beams, as they monitor and control the electromagnetic fields in the cavities. [...]
2022 - 5 p.
- Published in : JACoW SRF 2021 (2022) 303-307
Fulltext: PDF;
In : 20th International Conference on RF Superconductivity (SRF 2021), Online, US, 28 Jun - 2 Jul 2021, pp.303-307
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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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RF Dipole Crab Cavity Testing for HL-LHC
/ Valverde Alonso, Nuria (CERN) ; Calaga, Rama (CERN) ; Calvo, Sebastien (CERN) ; Capatina, Ofelia (CERN) ; Castilla, Alejandro (CERN ; Lancaster U. (main)) ; Chiodini, Marco (CERN) ; Duval, Christophe (CERN) ; Ferreira, Leonel (CERN) ; Gourragne, Max (CERN) ; Kohler, Paul (CERN) et al.
RF Crab Cavities are an essential element of the High Luminosity LHC (HL-LHC) upgrade at CERN. Two RF dipole crab cavity used for the compensation of the horizontal crossing angle were recently manufactured and integrated into Titanium Helium tank and RF ancillaries necessary for the beam operation. [...]
2022 - 7 p.
- Published in : JACoW SRF 2021 (2022) 687-693
Fulltext: PDF;
In : 20th International Conference on RF Superconductivity (SRF 2021), Online, US, 28 Jun - 2 Jul 2021, pp.687-693
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RF Performance Results of RF Double Quarter Wave Resonators for LHC High Luminosity Project
/ Turaj, Katarzyna (CERN) ; Bastard, Jeremy (CERN) ; Calaga, Rama (CERN) ; Calvo, Sebastien (CERN) ; Capatina, Ofelia (CERN) ; Castilla, Alejandro (CERN ; Jefferson Lab) ; Chiodini, Marco (CERN) ; Duval, Christophe (CERN) ; Edwards, Amelia (CERN ; Lancaster U.) ; Ferreira, Leonel (CERN) et al.
The LHC High Luminosity (HL-LHC) project includes, among other key items, the installation of superconducting crab cavities in the LHC machine. The Double Quarter Wave (DQW) crab cavity will be utilised to compensate for the effects of the vertical crossing angle [...]
2023 - 7 p.
- Published in : JACoW SRF 2023 (2023) 925-928
Fulltext: PDF;
In : 21st International Conference on Radio-Frequency Superconductivity (SRF 2023), Grand Rapids, MI, United States, 22 - 30 Jun 2023, pp.925-928
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Status of HIE-ISOLDE SC Linac Upgrade
/ Sublet, Alban (CERN) ; Alberty, Luis (CERN) ; Artoos, Kurt (CERN) ; Calatroni, Sergio (CERN) ; Capatina, Ofelia (CERN) ; Fraser, Matthew (CERN) ; Jecklin, Noemie (CERN) ; Kadi, Yacine (CERN) ; Maesen, Pierre (CERN) ; Rosaz, Guillaume (CERN) et al.
The HIE-ISOLDE upgrade project at CERN aims at increasing the energy of radioactive beams from 3MeV/u up to 10 MeV/u with mass-to-charge ratio in the range 2.5-4.5. The objective is obtained by replacing part of the existing normal conducting linac with superconducting Nb/Cu cavities. [...]
CERN-ACC-2015-229.-
2015 - 4 p.
- Published in : (2015) , pp. WEPHA021
Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.WEPHA021
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Lessons learned from the HIE-Isolde cavity production and cryomodule commissioning
/ Venturini Delsolaro, Walter (CERN) ; Artoos, Kurt (CERN) ; Capatina, Ofelia (CERN) ; Dr Schirm, Karl-Martin (CERN) ; Kadi, Yacine (CERN) ; Leclercq, Yann (CERN) ; Miyazaki, Akira (CERN) ; Montesinos, Eric (CERN) ; Parma, Vittorio (CERN) ; Rosaz, Guillaume (CERN) et al.
The HIE-ISOLDE superconducting linac started opera- tions at CERN in 2015 with a first cryomodule hosting five superconducting quarter wave resonators (QWR). These cavities are based on the Nb/Cu technology. [...]
2018 - 7 p.
- Published in : 10.18429/JACoW-SRF2017-TUXAA02
External link: Fulltext
In : 18th International Conference on RF Superconductivity, Lanzhou, China, 17 - 21 Jul 2017, pp.TUXAA02
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Key Design Features of Crab-Cavity Cryomodule for HiLumi LHC
/ Pattalwar, Shrikant (Daresbury) ; May, Andrew J (Daresbury) ; McIntosh, Peter A (Daresbury) ; Wheelhouse, Alan E (Daresbury) ; Burt, Graeme (Lancaster U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Hall, Benjamin (Lancaster U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Capatina, Ofelia (CERN) ; Jones, Thomas (Daresbury) ; Templeton, Niklas (Daresbury) ; Nicol, Thomas (Fermilab)
A prototype Superconducting RF (SRF) cryomodule, comprising multiple compact crab cavities is foreseen to realise a local crab crossing scheme for the “Hi-Lumi LHC”, a project launched by CERN to increase the luminosity performance of LHC. A cryomodule with two cavities will be initially installed and tested on the SPS drive accelerator at CERN to evaluate performance with high-intensity proton beams. [...]
2014 - 3 p.
- Published in : , pp. WEPRI045
Fulltext: PDF; External link: Published version from JACoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.WEPRI045
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