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Performance of a MQXF Nb$_3$Sn Quadrupole Magnet Under Different Stress Level
/ Izquierdo Bermudez, Susana (CERN) ; Ambrosio, Giorgio (Fermilab) ; Bordini, Bernardo (CERN) ; Bourcey, Nicolas (CERN) ; Devred, Arnaud ; Ferracin, Paolo (LBNL, Berkeley) ; Ferradas Troitino, Jose (CERN) ; Ferradas Troitino, Salvador (CERN) ; Fiscarelli, Lucio (CERN) ; Fleiter, Jerome (CERN) et al.
In a dipole or in a quadrupole accelerator magnet, the displacement of the coil turns induced by the electromagnetic forces can cause quenches limiting the magnet performance. For this reason, an azimuthal preload is applied to avoid azimuthal movements of the coil up to the required operational current. [...]
arXiv:2204.11944; FERMILAB-PUB-22-223-TD.-
2022-05-10 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4007106
Fulltext: PDF; External link: Fermilab Accepted Manuscript
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4007106
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2.
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Preload Characterization of Short Models of MQXF the Nb$_3$Sn Low-$β$ Quadrupole for the Hi-Lumi LHC
/ Takala, Eelis (CERN) ; Ambrosio, Giorgio (Fermilab) ; Bourcey, Nicolas (CERN) ; Cheng, Daniel W (LBL, Berkeley) ; Ferracin, Paolo (CERN) ; Guinchard, Michael (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Mangiarotti, Franco (CERN) ; Pan, Heng (LBL, Berkeley) ; Perez, Juan Carlos (CERN) et al.
MQXF is the Nb$_3$Sn Low-β Quadrupole magnet that the HL-LHC project is planning to install in the LHC interaction regions in 2026 as part of an upgrade to increase the LHC inte-grated luminosity by about a factor of ten. The magnet will be fab-ricated in two different lengths: 4.2 m for MQXFA, built in the US by the Accelerator Upgrade Project (AUP), and 7.15 m for MQXFB, fabricated by CERN. [...]
FERMILAB-PUB-20-119-TD.-
2020 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 30 (2020) 4002806
Fulltext: PDF; External link: Fermilab Accepted Manuscript
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3.
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Training Curves of Nb$_3$Sn Rutherford Cables With a Wide Range of Impregnation Materials Measured in the BOX Facility
/ Otten, S. (Twente U., Enschede) ; Kario, A. (Twente U., Enschede) ; Wessel, W.A. J. (Twente U., Enschede) ; Leferink, J. (Twente U., Enschede) ; ten Kate, H.H.J. (Twente U., Enschede) ; Daly, M. (PSI, Villigen) ; Hug, C. (PSI, Villigen) ; Sidorov, S. (PSI, Villigen) ; Brem, A. (PSI, Villigen) ; Auchmann, B. (PSI, Villigen ; CERN) et al.
Training of accelerator magnets is a costly and time consuming process. The number of training quenches must therefore be reduced to a minimum. [...]
arXiv:2211.10213.-
2023-08 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4003605
Fulltext: 2211.10213 - PDF; Publication - PDF;
In : Applied Superconductivity Conference, Honolulu, Hawaii, United States, 23 - 28 Oct 2022, pp.4003605
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4.
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Powering Performance and Endurance Beyond Design Limits of HL-LHC Low-Beta Quadrupole Model Magnets
/ Mangiarotti, Franco J (CERN) ; Ferradas Troitino, Salvador (CERN) ; Duda, Michal (Cracow, INP) ; Bajko, Marta (CERN) ; Bottura, Luca (CERN) ; Desbiolles, Vincent (CERN) ; Elekes, Gyopar (Babes-Bolyai U.) ; Ferradas Troitino, Jose (METROLAB, Geneva ; CERN) ; Feuvrier, Jerome (CERN) ; Ferracin, Paolo (LBNL, Berkeley) et al.
For the High Luminosity Upgrade project (HL-LHC) of the CERN Large Hadron Collider (LHC), lower β* quadrupole magnets based on advanced Nb 3 Sn conductors will be installed on each side of the ATLAS and CMS interaction points. To quantify the endurance and technological limits of these magnets, beyond their maximum operational conditions, two short length model magnets have been extensively tested at the CERN SM18 test facility. [...]
2021 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 31 (2021) 4000805
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5.
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Advanced Nb$_{3}$Sn conductors tested in a racetrack coil configuration for the 11T dipole project
/ Bajas, Hugues (CERN) ; Bajko, Marta (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Rochepault, Etienne (CERN) ; Lorenzo Gomez, Jose V (CERN) ; Chiuchiolo, Antonella (CERN) ; Perez, Juan Carlos (CERN)
Within the 11T dipole magnet conductor development for the high-luminosity LHC upgrade, two types of Nb3 Sn cable based on the powder-in-tube (PIT) and the Rod and Restack processes (RRP) are tested in racetrack configuration in the short model coil (SMC) magnets. In 2016 and 2017, the performances of three different coils wound with 40-strand cables, one made of OST RRP 132/169 and two of PIT 120 strands have been measured using the SMC structure. [...]
2018 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4008605
In : 13th European Conference on Applied Superconductivity, ICCG, Geneva, Switzerland, 17 - 21 Sep 2017, pp.4008605
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6.
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Summary of the Mechanical Performances of the 1.5 m Long Models of the Nb$^3$Sn Low-$\beta$ Quadrupole MQXF
/ Vallone, Giorgio (LBL, Berkeley) ; Ambrosio, Giorgio (Fermilab) ; Anderssen, Eric C (LBL, Berkeley) ; Bajas, Hugo (CERN) ; Bourcey, Nicolas (CERN) ; Cheng, Daniel W (LBL, Berkeley) ; Chlachidze, Guram (Fermilab) ; Ferracin, Paolo (CERN) ; Grosclaude, Philippe (CERN) ; Guinchard, Michael (CERN) et al.
/LARP
The Nb3Sn quadrupole MQXF is being developed as a part of the LHC High Luminosity upgrade. The magnet design was tested on 1:5m long short models, sharing the same cross-section with the full-length magnets. [...]
FERMILAB-PUB-19-052-TD.-
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4002805
Fulltext: PDF;
In : Applied Superconductivity Conference 2018, Seattle, United States Of America, 28 Oct - 2 Nov 2018, pp.4002805
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8.
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Test Results of the MQYYM: A 90 Mm NbTi Quadrupole Magnet Option for HL-LHC
/ Simon, D (IRFU, Saclay) ; Perraud, S (IRFU, Saclay) ; Felice, H (IRFU, Saclay ; CERN) ; Godon, R (IRFU, Saclay) ; Machado, R Correia (IRFU, Saclay) ; Gheller, J M (IRFU, Saclay) ; Bouziat, D (IRFU, Saclay) ; Stepanov, V (IRFU, Saclay) ; Madur, A (IRFU, Saclay) ; Segreti, M (IRFU, Saclay) et al.
For the HL-LHC project, a 90 mm NbTi cos(2θ) double aperture quadrupole magnet with an operating gradient of 120 T/m at 1.9 K has been designed as an option to replace the 70 mm aperture LHC quadrupole MQY. CEA in collaboration with CERN designed and manufactured a single aperture short model magnet with a magnetic length of 1.215 m at 1.9 K called MQYYM. [...]
2022 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4004305
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4004305
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10.
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Mechanical Analysis of the FRESCA2 Dipole During Preload, Cool-Down, and Powering
/ Rochepault, Etienne (CERN ; IRFU, Saclay) ; Bourcey, Nicolas (CERN) ; Ferracin, Paolo (CERN) ; Guinchard, Michael (CERN) ; Grosclaude, Philippe (CERN) ; Manil, Pierre (IRFU, Saclay) ; Perez, Juan Carlos (CERN) ; Rifflet, Jean-Michel (IRFU, Saclay) ; de Rijk, Gijs (CERN) ; Rondeaux, Francoise (IRFU, Saclay) et al.
The FRESCA2 dipole magnet is being developed within a collaboration between CEA Saclay and CERN. The main goal of the magnet is to provide a 13 T nominal bore field into a clear aperture of 100 mm diameter, for the second generation cable test facility FRESCA2 at CERN. [...]
2018 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4002905
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4002905
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