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Test Results of the CERN HL-LHC low-$\beta$ Quadrupole Short Models MQXFS3c and MQXFS4
/ Mangiarotti, Franco J (CERN) ; Bajas, Hugues (CERN) ; Ambrosio, Giorgio (Fermilab) ; Bajko, Marta (CERN) ; Bordini, Bernardo (CERN) ; Bourcey, Nicolas (CERN) ; Duda, Michal (Cracow, INP ; CERN) ; Desbiolles, Vincent (CERN) ; Feuvrier, Jerome (CERN) ; Fleiter, Jerome (CERN) et al.
/LARP
For the High Luminosity Upgrade of the CERN Large Hadron Collider, lower $\beta$* quadrupole magnets based on advanced Nb3Sn conductors will be installed on each side of the ATLAS and CMS experiment insertion zones. As part of the technological developments needed to achieve the required field gradient of 132.6 T/m within a 150-mm aperture, short length model magnets, named MQXFS, are tested both at the CERN SM18 and FERMI Lab test facilities. [...]
FERMILAB-PUB-19-055-TD.-
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4001705
Fulltext: PDF;
In : Applied Superconductivity Conference 2018, Seattle, United States Of America, 28 Oct - 2 Nov 2018, pp.4001705
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Test Result of the Short Models MQXFS3 and MQXFS5 for the HL-LHC Upgrade
/ Bajas, Hugues (CERN) ; Ambrosio, Giorgio (Fermilab) ; Ballarino, A (CERN) ; Bajko, Marta (CERN) ; Bordini, B (CERN) ; Bourcey, N (CERN) ; Cheng, D W (LBNL, Berkeley) ; Cabon, M (LBNL, Berkeley) ; Chiuchiolo, A (CERN) ; Chlachidze, G (Fermilab) et al.
In the framework of the High-Luminosity Large Hadron Collider, the installation of a new generation of quadrupole magnets is foreseen on each side of ATLAS and CMS experiments. The new magnets are based on Nb$_{3}$Sn technology and shall be able to reach an ultimate current of 17.9 kA with a peak field of 12.3 T in the coil. [...]
FERMILAB-PUB-18-094-TD.-
2018 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4007006
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4007006
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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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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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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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7.
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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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Construction and Test of the Enhanced Racetrack Model Coil, First CERN R&D; Magnet for the FCC
/ Perez, J C (CERN) ; Bajko, M (CERN) ; Bourcey, N (CERN) ; Bordini, B (CERN) ; Bottura, L (CERN) ; Troitiño, S Ferradás (CERN) ; Gautheron, E (CERN) ; Guinchard, M (CERN) ; Bermudez, S Izquierdo (CERN) ; Mangearotti, F (CERN) et al.
Racetrack model coils (RMC) have been built at CERN during the past decade, as an R&D; tool to qualify conductors and technologies developed for high field superconducting accelerator magnets (Perez
et al.
, 2016). RMC, assembled in a dipole magnet configuration, proved to be an efficient instrument reducing cost and feed-back time while developing new magnets. [...]
2022 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4005105
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4005105
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Power test of the second-generation Compact Linear Collider (CLIC) Nb$_3$Sn damping wiggler short model
/ Duda, Michal (Cracow, INP ; CERN) ; Mangiarotti, Franco (CERN) ; Bajko, Marta (CERN) ; Bernhard, Axel (KIT, Karlsruhe) ; Desbiolles, Vincent (CERN) ; Ferracin, Paolo (CERN) ; Feuvrier, Jerome (CERN) ; Garcia Fajardo, Laura (LBL, Berkeley) ; Lorenzo, Jose (CERN) ; Mazet, Jacky (CERN) et al.
In the frame of the compact linear collider project, a high-field short-period superconducting damping wigglers will be required to reduce the emittance of the electron and positron beams. The use of Nb$_3$Sn as superconducting material is being investigated, as a valid option for its smaller size and increased working margin. [...]
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4100405
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10.
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Comparison of Cold Powering Performance of 2-m-Long Nb$_{3}$Sn 11 T Model Magnets
/ Willering, Gerard (CERN) ; Bajko, Marta (CERN) ; Bajas, Hugues (CERN) ; Bordini, Bernardo (CERN) ; Bottura, Luca (CERN) ; Feuvrier, Jerome (CERN) ; Fiscarelli, Lucio (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Loffler, Christian (CERN) ; Mangiarotti, Franco (CERN) et al.
For the upgrade of the LHC, two 15-m NbTi main dipole magnets are foreseen to be replaced by two 11 T 5.7-m-long Nb$_{3}$Sn dipoles each. A series of model magnets has been produced to verify the design choices that are important for the prototype and series production, focusing on mechanical aspects and protection studies. [...]
2018 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4007205
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4007205
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