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1.
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Crab Cavities for ILC
/ McIntosh, Peter (Daresbury ; Cockcroft Inst. Accel. Sci. Tech.) ; Belomestnykh, Sergey (Fermilab) ; Burt, Graeme (Lancaster U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Calaga, Rama (CERN) ; De Silva, Subashini (Jefferson Lab ; Old Dominion U. (main)) ; Delayen, Jean (Old Dominion U. ; Jefferson Lab) ; Gonin, Ivan (Fermilab) ; Khabiboulline, Timergali (Fermilab) ; Lunin, Andrei (Fermilab) ; Okugi, Toshiyuki (KEK, Tsukuba) et al.
For the 14 mrad crossing angle proposed, crab cavity systems are fundamentally anticipated for the viable operation of the International Linear Collider (ILC), in order to maximise its luminosity performance. Since 2021, a specialist development team have been defining optimum crab cavity technologies which can fulfil the operational requirements for ILC, both for its baseline centre-of-mass energy of 250 GeV, but also extending those requirements out to higher beam collision intensities. [...]
FERMILAB-CONF-23-0863-SQMS-TD.-
2023 - 9 p.
- Published in : JACoW SRF 2023 (2023) 990-998
Fermilab Library Server: PDF; Fulltext: PDF; External link: Fermilab Library Server
In : 21st International Conference on Radio-Frequency Superconductivity (SRF 2023), Grand Rapids, MI, United States, 22 - 30 Jun 2023, pp.990-998
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2.
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3.
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Electron-Hadron Colliders: EIC, LHeC and FCC-eh
/ Brüning, Oliver (CERN) ; Seryi, Andrei (Jefferson Lab) ; Verdú-Andrés, Silvia (Brookhaven)
Electron-hadron colliders are the ultimate tool for high-precision quantum chromodynamics studies and provide the ultimate microscope for probing the internal structure of hadrons. The electron is an ideal probe of the proton structure because it provides the unmatched precision of the electromagnetic interaction, as the virtual photon or vector bosons probe the proton structure in a clean environment, the kinematics of which is uniquely determined by the electron beam and the scattered lepton, or the hadronic final state accounting appropriately for radiation. [...]
2022 - 11 p.
- Published in : Front. Phys. 10 (2022) 886473
Fulltext: PDF;
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4.
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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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5.
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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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6.
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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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7.
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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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8.
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HOM Coupler Alterations for the LHC DQW Crab Cavity
/ Mitchell, James (Lancaster U. (main) ; CERN ; Cockcroft Inst. Accel. Sci. Tech.) ; Burt, Graeme (Lancaster U. (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Calaga, Rama (CERN) ; Shipman, Nicholas (Lancaster U. (main) ; CERN ; Cockcroft Inst. Accel. Sci. Tech.) ; Verdú-Andrés, Silvia (Brookhaven Natl. Lab.) ; Wu, Qiong (Brookhaven Natl. Lab.) ; Xiao, Binping (Brookhaven Natl. Lab.)
As part of the High Luminosity Large Hadron Collider (HL-LHC) project, 16 crab cavities are to be installed in the LHC in 2025. The two crab cavity designs are the Double Quarter Wave (DQW) and Radio Frequency Dipole (RFD). [...]
2018 - 5 p.
- Published in : 10.18429/JACoW-SRF2017-MOPB079
Fulltext: PDF;
In : 18th International Conference on RF Superconductivity, Lanzhou, China, 17 - 21 Jul 2017, pp.MOPB079
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9.
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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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10.
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Simulation and Measurements of Crab Cavity HOMs and HOM Couplers for HL-LHC
/ Mitchell, James (Lancaster U. (main) ; CERN ; Cockcroft Inst. Accel. Sci. Tech.) ; Apsimon, Robert (Lancaster U. (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Ben-Zvi, Ilan (Brookhaven Natl. Lab.) ; Burt, Graeme (Lancaster U. (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Calaga, Rama (CERN) ; Castilla, Alejandro (CERN) ; Jones, Thomas (Lancaster U. (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Macpherson, Alick (CERN) ; Powers, Tom (Jefferson Lab) ; Shipman, Nicholas (Lancaster U. (main) ; CERN ; Cockcroft Inst. Accel. Sci. Tech.) et al.
Two Superconducting Radio-Frequency (SRF) crab cavities are foreseen for the High Luminosity LHC (HL-LHC) upgrade. Preliminary beam tests of the Double Quarter Wave (DQW) crab cavity will take place in the Super Proton Synchrotron (SPS) in 2018. [...]
2018 - 5 p.
- Published in : 10.18429/JACoW-SRF2017-THPB059
Fulltext: PDF;
In : 18th International Conference on RF Superconductivity, Lanzhou, China, 17 - 21 Jul 2017, pp.THPB059
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