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Quench Protection Studies for the High Luminosity LHC Nb$_3$Sn Quadrupole Magnets
/ Ravaioli, Emmanuele (CERN) ; Ambrosio, Giorgio (Fermilab) ; Bajas, Hugues (CERN) ; Duda, Michal (PSI, Villigen ; CERN) ; Ferracin, Paolo (LBNL, Berkeley) ; Ferradas Troitino, Jose (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Mangiarotti, Franco (CERN) ; Marinozzi, Vittorio (Fermilab) ; Mentink, Matthias (CERN) et al.
Achieving the targets of the High Luminosity LHC project requires the installation of new inner triplet magnet circuits for the final focusing of the particle beams on each side of the two main interaction points. Each of the four circuits will include six 150 mm aperture, 132.2 T/m gradient, Nb$_3$Sn quadrupole magnets to be installed in the LHC tunnel. [...]
FERMILAB-PUB-21-124-TD.-
2021 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 31 (2021) 4700405
Fulltext from Publisher: PDF;
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Quench Protection of the First 4-m-Long Prototype of the HL-LHC Nb$_3$Sn Quadrupole Magnet
/ Ravaioli, E (LBL, Berkeley) ; Ambrosio, G (Fermilab) ; Bortot, L (CERN) ; Ferracin, P (CERN) ; Izquierdo Bermudez, S (CERN) ; Joshi, P (Brookhaven) ; Maciejewski, M (CERN) ; Marinozzi, V (Fermilab) ; Mentink, M (CERN) ; Muratore, J F (Brookhaven) et al.
/LARP
The quadrupole magnets for the LHC upgrade to higher luminosity are jointly developed by CERN and US-LARP (LHC Accelerator Research Program). These Nb3Sn magnets will be protected against overheating after a quench by a combination of heaters bonded to the coil outer surface and CLIQ (Coupling-Loss Induced Quench) units. [...]
FERMILAB-PUB-19-051-TD.-
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4701405
Fulltext: PDF;
In : Applied Superconductivity Conference 2018, Seattle, United States Of America, 28 Oct - 2 Nov 2018, pp.4701405
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Simulating Quench Transients in the Self-Protected HL-LHC High Order Corrector Magnets
/ Mayr, D (CERN ; Innsbruck U.) ; Bender, L (Freiburg U.) ; Gautheron, E (CERN) ; Mariotto, S (Milan U.) ; Prioli, M (Milan U.) ; Ravaioli, E (CERN) ; Statera, M (Milan U.) ; Todesco, E (CERN) ; Verweij, A (CERN) ; Wozniak, M (CERN)
—To meet the milestones set by the High-Luminosity LHC (HL-LHC) project, the integration of new inner triplet magnet circuits is vital for enhancing the focusing of the particle beams at ATLAS and CMS. In addition to the Nb$_3$Sn quadrupole magnets, high-order Nb-Ti magnets are required for field correction. [...]
2024 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4003605
Fulltext: PDF;
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Quench Protection System Optimization for the High Luminosity LHC Nb $_3$Sn Quadrupoles
/ Ravaioli, E (LBL, Berkeley) ; Ambrosio, G (Fermilab) ; Auchmann, B (CERN) ; Ferracin, P (CERN) ; Maciejewski, M (CERN) ; Rodriguez-Mateos, F (CERN) ; Sabbi, GL (LBL, Berkeley) ; Todesco, E (CERN) ; Verweij, A P (CERN)
The upgrade of the large hadron collider to achieve higher luminosity requires the installation of twenty-four 150 mm aperture, 12 T, $Nb_3Sn$ quadrupole magnets close to the two interaction regions at ATLAS and CMS. The protection of these high-field magnets after a quench is particularly challenging due to the high stored energy density, which calls for a fast, effective, and reliable protection system. [...]
FERMILAB-PUB-16-563-TD.-
2017 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 27 (2017) 4702107
In : Applied Superconductivity Conference, Denver, CO, USA, 4 - 9 Sep 2016, pp.4702107
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Advanced Quench Protection for the Nb$_3$Sn Quadrupoles for the High Luminosity LHC
/ Ravaioli, E (CERN ; Twente U., Enschede) ; Auchmann, B (CERN) ; Datskov, V I ; Blomberg Ghini, J (CERN ; Norwegian U. Sci. Tech.) ; Dahlerup-Petersen, K (CERN) ; Fernandez Navarro, A M (CERN) ; Kirby, G (CERN) ; Maciejewski, M (CERN ; Lodz, Tech. U.) ; Rodriguez Mateos, F (CERN) ; ten Kate, H H J (CERN ; Twente U., Enschede) et al.
The goal of the High Luminosity LHC project is upgrading the LHC in order to increase its luminosity by a factor of five. To achieve this, 24 150-mm-aperture 12-T Nb_3Sn quadrupole magnets are to be installed close to the two interaction regions at ATLAS and CMS. [...]
2016 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 26 (2016) 4002006
In : 12th European Conference on Applied Superconductivity, Lyon, France, 06 - 10 Sep 2015, pp.4002006
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Quench protection study of a 11 T Nb$_3$Sn model dipole for the High Luminosity LHC
/ Izquierdo Bermudez, Susana (CERN) ; Mangiarotti, Franco (CERN) ; Willering, Gerard (CERN) ; Bajko, Marta (CERN) ; Bottura, Luca (CERN) ; Ferradas Troitino, Jose (CERN) ; Guinchard, Michael (CERN) ; Savary, Frederic (CERN) ; Vallone, Giorgio (CERN)
The planned upgrade of the Large Hadron Collider collimation system requires the installation of 11 T Nb$_3$Sn dipole magnets in the dispersion suppressor areas. Due to the large stored energy density and the low copper stabilizer section, the quench protection of these magnets is particularly challenging. [...]
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4701005
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Study of the Heater-Coil Electrical Insulation for the HL-LHC Low Beta Quadrupoles
/ Marinozzi, Vittorio (Fermilab) ; Ambrosio, Giorgio (Fermilab) ; Baldini, Maria (Fermilab) ; Izquierdo Bermudez, Susana (CERN) ; Ferracin, Paolo (LBL, Berkeley) ; Krave, Steven (Fermilab) ; Muratore, Joseph (BNL, NSLS) ; Nobrega, Alfred (Fermilab) ; Parker, Marcellus (Fermilab) ; Todesco, Ezio (CERN) et al.
In the framework of the HL-LHC project, the present LHC low-β superconducting quadrupoles will be substituted with higher performance Nb3Sn magnets (MQXF) with 11.4 T coil peak field. MQXF coils are impregnated with epoxy resin to reduce risk of stress concentration on the brittle conductor. [...]
2021 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 31 (2021) 4001705
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