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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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HL-LHC impedance and related effects
/ Amorim, David (Universite Grenoble-Alpes (FR)) ; Antipov, Sergey (CERN) ; Biancacci, Nicolo (CERN) ; Salvant, Benoit (CERN) ; Arpaia, Pasquale (Universita e sezione INFN di Napoli (IT)) ; Barnes, Mike (CERN) ; Bonanno, Edoardo (Universita degli studi di Palermo (IT)) ; Calaga, Rama (CERN) ; Carideo, Emanuela (Universita del Sannio (IT)) ; Day, Hugo Alistair et al.
This note aims at gathering the work done by CERN and collaborators on the HL-LHC beam coupling impedance in the recent years and identifying the next steps [...]
CERN-ACC-NOTE-2018-0087.
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2018. - 93 p.
Full text
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Crab cavity and cryomodule development for HL-LHC
/ Carra, Federico (CERN) ; Amorim Carvalho, Alexandre (CERN) ; Artoos, Kurt (CERN) ; Atieh, Said (CERN) ; Aviles Santillana, Ignacio (CERN) ; Belomestnykh, Sergey (RIKEN BNL) ; Boucherie, Antoine (CERN) ; Brachet, Jean-Pierre (CERN) ; Brodzinski, Krzysztof (CERN) ; Burt, Graeme (Lancaster U.) et al.
The HL-LHC project aims at increasing the LHC luminosity by a factor 10 beyond the design value. The installation of a set of RF Crab Cavities to increase bunch crossing angle is one of the key upgrades of the program. [...]
2015 - 7 p.
- Published in : 10.18429/JACoW-SRF2015-FRBA02
Fulltext: PDF;
In : 17th International Conference on RF Superconductivity, Whistler, Canada, 13 - 18 Sep 2015, pp.FRBA02
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FPC and HOM Coupler Test Boxes for HL-LHC Crab Cavities
/ Tutte, Adam (Lancaster U.) ; Burt, Graeme (Lancaster U.) ; Calaga, Rama (CERN) ; De Silva, Subashini (Old Dominion U.) ; Li, Zenghai (SLAC) ; Macpherson, Alick (CERN) ; Montesinos, Eric (CERN) ; Xiao, Binping (RIKEN BNL)
The LHC luminosity upgrade will involve the installation of thirty-two 400 MHz SRF crab cavities. The cavities have two variants known as the RF dipole and double quarter-wave crab cavities. [...]
2015 - 5 p.
- Published in : 10.18429/JACoW-SRF2015-THPB081
Fulltext: PDF;
In : 17th International Conference on RF Superconductivity, Whistler, Canada, 13 - 18 Sep 2015, pp.THPB081
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Design of Dressed Crab Cavities for the HL-LHC Upgrade
/ Zanoni, Carlo (CERN) ; Artoos, Kurt (CERN) ; Atieh, Said (CERN) ; Aviles Santillana, Ignacio (CERN) ; Belomestnykh, Sergey (RIKEN BNL) ; Ben-Zvi, Ilan (RIKEN BNL ; SUNY, Stony Brook) ; Brachet, Jean-Pierre (CERN) ; Burt, Graeme (Lancaster U.) ; Calaga, Rama (CERN) ; Capatina, Ofelia (CERN) et al.
The HL-LHC upgrade relies on a set of RF crab cavities for reaching its goals. Two parallel concepts, the Double Quarter Wave (DQW) and the RF Dipole (RFD), are going through a comprehensive design process along with preparation of fabrication in view of extensive tests with beam in SPS. [...]
2015 - 5 p.
- Published in : 10.18429/JACoW-SRF2015-THPB070
Fulltext: PDF;
In : 17th International Conference on RF Superconductivity, Whistler, Canada, 13 - 18 Sep 2015, pp.THPB070
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Engineering design and prototype fabrication of HOM couplers for HL-LHC crab cavities
/ Zanoni, Carlo (CERN) ; Atieh, Said (CERN) ; Aviles Santillana, Ignacio (CERN) ; Belomestnykh, Sergey (RIKEN BNL ; Stony Brook U.) ; Burt, Graeme (Lancaster U.) ; Calaga, Rama (CERN) ; Capatina, Ofelia (CERN) ; Capelli, Teddy (CERN) ; Carra, Federico (CERN) ; De Silva, Subashini (Old Dominion U.) et al.
The High-Luminosity upgrade for the LHC relies on a set of RF Crab Cavities for reaching its goals. Two parallel concepts, the Double Quarter Wave (DQW) and the RF Dipole (RFD), are going through a comprehensive design process along with preparation of fabrication in view of extensive tests with beam in SPS. [...]
2015 - 5 p.
- Published in : 10.18429/JACoW-SRF2015-THPB069
Fulltext: PDF;
In : 17th International Conference on RF Superconductivity, Whistler, Canada, 13 - 18 Sep 2015, pp.THPB069
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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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