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Use of High Resolution DAQ System to Aid Diagnosis of HD2b, a High Performance Nb$_3$Sn Dipole
/ Lizarazo, J (LBNL, Berkeley) ; Doering, D (LBNL, Berkeley) ; Doolittle, L (LBNL, Berkeley) ; Galvin, J (LBNL, Berkeley) ; Caspi, S (LBNL, Berkeley) ; Dietderich, D R (LBNL, Berkeley) ; Felice, H (LBNL, Berkeley) ; Ferracin, P (LBNL, Berkeley) ; Godeke, A (LBNL, Berkeley) ; Joseph, J M (LBNL, Berkeley) et al.
A novel voltage monitoring system to record voltage transients in superconducting magnets is being developed at LBNL . This system has 160 monitoring channels capable of measuring differential voltages of up to 1.5 kV with 100 kHz bandwidth and 500 kS/s digitizing rate. [...]
2009 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 19 (2009) 2345-2349
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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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ebook
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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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Simulation of beam–beam interaction with crab cavities for LHC upgrade
/ Qiang, J (LBNL, Berkeley) ; Paret, S (LBNL, Berkeley) ; Ratti, A (LBNL, Berkeley) ; Barranco, J (Ecole Polytechnique, Lausanne) ; Pieloni, T (Ecole Polytechnique, Lausanne) ; Arduini, G (CERN) ; Buffat, X (CERN) ; Papaphilippou, Y (CERN)
The crab cavities are a critical component in the high luminosity LHC upgrade project to compensate the luminosity loss from large crossing angle collision. However, these crab cavities will not be perfect in the real accelerator. [...]
2018 - 7 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 900 (2018) 53-59
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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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Trim Tuning of SPS-Series DQW Crab Cavity Prototypes
/ Verdú-Andrés, Silvia (Brookhaven Natl. Lab.) ; Baurac, Samuel (Adv. Design Consult., Lansing) ; Boulware, Charles (Adv. Design Consult., Lansing) ; Clemens, William (Jefferson Lab) ; Grimm, Terry (Adv. Design Consult., Lansing) ; McEwen, Anne (Jefferson Lab) ; Park, HyeKyoung (Old Dominion U. ; Jefferson Lab) ; Ratti, Alessandro (LBNL, Berkeley ; SLAC) ; Skaritka, John (Brookhaven Natl. Lab.) ; Wu, Qiong (Brookhaven Natl. Lab.) et al.
The final steps in the manufacturing of a superconducting RF cavity involve careful tuning before the final welds to match the target frequency as fabrication tolerances may introduce some frequency deviations. The target frequency is chosen based on analysis of the shifts induced by remaining processing steps including acid etching and cool down. [...]
CERN-ACC-2017-105.-
2017 - 3 p.
- Published in : 10.18429/JACoW-IPAC2017-MOPVA143
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPVA143
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