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First demonstration of the use of crab cavities on hadron beams
/ Calaga, R (CERN) ; Alekou, A (Manchester U.) ; Antoniou, F (CERN) ; Appleby, R B (Manchester U.) ; Arnaudon, L (CERN) ; Artoos, K (CERN) ; Arduini, G (CERN) ; Baglin, V (CERN) ; Barriere, S (CERN) ; Bartosik, H (CERN) et al.
Many future particle colliders require beam crabbing to recover geometric luminosity loss from the nonzero crossing angle at the interaction point (IP). A first demonstration experiment of crabbing with hadron beams was successfully carried out with high energy protons. [...]
2021 - 6 p.
- Published in : Phys. Rev. Accel. Beams 24 (2021) 062001
Fulltext: PDF;
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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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Design of LHC Crab Cavities Based on DQW Cryomodule Test Experience
/ Verdú-Andrés, Silvia (Brookhaven Natl. Lab.) ; Calaga, Rama (CERN) ; Cano-Pleite, Eduardo (CERN) ; Leuxe, Raphael (CERN) ; Mitchell, James (Lancaster U. ; CERN)
A cryomodule with two Double-Quarter Wave (DQW) cavities was designed, built and tested with the SPS beam in 2018. Each cavity was equipped with an rf pickup antenna to monitor field amplitude and phase. [...]
SRF2019.-
2019 - 4 p.
- Published in : 10.18429/JACoW-SRF2019-THP035
Fulltext: PDF;
In : 19th International Conference on RF Superconductivity, Dresden, Germany, 30 Jun - 05 Jul 2019, pp.927-930
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Status of the HL-LHC Crab Cavity Tuner
/ Artoos, Kurt (CERN) ; Arnaudon, Luca (CERN) ; Calaga, Rama (CERN) ; Cano-Pleite, Eduardo (CERN) ; Capatina, Ofelia (CERN) ; Capelli, Teddy (CERN) ; Cartaxo dos Santos, Duarte (CERN) ; Garlasché, Marco (CERN) ; Glenat, David (CERN) ; Krawczyk, Artur (Cracow, INP ; CERN) et al.
The resonance frequency of the HL-LHC Double Quarter Wave (DQW) and Radio Frequency Dipole (RFD) crab cavities is set to the operating frequency of 400.79 MHz by deforming the cavities. For both types of cavities, the tuning principle foresees a symmetric mechanical deformation of parts of the cavities in vertical direction, with the tuner motor placed outside on top of the vacuum vessel. [...]
SRF2019.-
2019 - 6 p.
- Published in : 10.18429/JACoW-SRF2019-TUP081
Fulltext: PDF;
In : 19th International Conference on RF Superconductivity, Dresden, Germany, 30 Jun - 05 Jul 2019, pp.648-653
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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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Determining BCP Etch Rate and Uniformity in High Luminosity LHC Crab Cavities
/ Jones, Thomas (Daresbury ; Lancaster U. (main)) ; Burt, Graeme (Lancaster U. (main)) ; Calaga, Rama (CERN) ; Capatina, Ofelia (CERN) ; Ferreira, Leonel (CERN) ; Leuxe, Raphael (CERN) ; Mitchell, James (Lancaster U. (main)) ; Pattalwar, Shrikant (Daresbury) ; Verdú-Andrés, Silvia (Brookhaven Natl. Lab.) ; Xiao, Binping (Brookhaven Natl. Lab.)
The compact SRF Crab Cavities required for HL-LHC have complex geometries making prediction of average and local BCP etch rates a difficult task. This paper describes a series of experiments and simulations used to determine the etch uniformity and rate within these structures. [...]
2018 - 5 p.
- Published in : 10.18429/JACoW-SRF2017-TUPB100
External link: Fulltext
In : 18th International Conference on RF Superconductivity, Lanzhou, China, 17 - 21 Jul 2017, pp.TUPB100
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Design and Vertical Tests of SPS-series Double-Quarter Wave (DQW) Cavity Prototypes for the HL-LHC Crab Cavity SystemDesign and vertical tests of double-quarter wave cavity prototypes for the high-luminosity LHC crab cavity system
/ Verdú-Andrés, S. (Brookhaven Natl. Lab.) ; Artoos, K. (CERN) ; Belomestnykh, S. (Brookhaven Natl. Lab. ; Fermilab ; Stony Brook U.) ; Ben-Zvi, I. (Brookhaven Natl. Lab. ; Stony Brook U.) ; Boulware, C. (Unlisted, US, MI) ; Burt, G. (Lancaster U. (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Calaga, R. (CERN) ; Capatina, O. (CERN) ; Carra, F. (CERN) ; Castilla, A. (CERN) et al.
Crab crossing is essential for high-luminosity colliders. The High Luminosity Large Hadron Collider (HL-LHC) will equip one of its Interaction Points (IP1) with Double-Quarter Wave (DQW) crab cavities. [...]
arXiv:1805.08123; FERMILAB-PUB-18-207-TD.-
2018-08-13 - 3 p.
- Published in : Phys. Rev. Accel. Beams 21 (2018) 082002
Fulltext: thpal146 - PDF; fermilab-pub-18-207-td - PDF; arXiv:1805.08123 - PDF; Fulltext from Publisher: openaccess_PhysRevAccelBeams.21.082002 - PDF; 10.1103_PhysRevAccelBeams.21.082002 - PDF; External link: Fermilab Library Server (fulltext available)
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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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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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