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1.
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The 16 T dipole development program for FCC and HE-LHC
/ Schoerling, Daniel (CERN) ; Arbelaez, Diego (LBNL, Berkeley) ; Auchmann, Bernhard (PSI, Villigen) ; Bajko, Marta (CERN) ; Ballarino, Amalia (CERN) ; Barzi, Emanuela (Fermilab) ; Bellomo, Giovanni (INFN, Milan) ; Benedikt, Michael (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Bordini, Bernardo (CERN) et al.
A future circular collider (FCC) with a center-of-mass energy of 100 TeV and a circumference of around 100 km, or an energy upgrade of the LHC (HE-LHC) to 27 TeV require bending magnets providing 16 T in a 50-mm aperture. Several development programs for these magnets, based on Nb$_3$Sn technology, are being pursued in Europe and in the U.S. [...]
FERMILAB-PUB-19-400-TD.-
2019 - 9 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4003109
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2.
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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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3.
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Assembly of a Mechanical Model of MQXFB, the 7.2-m-Long Low-$\beta$ Quadrupole for the High-Luminosity LHC Upgrade
/ Vallone, Giorgio (LBL, Berkeley) ; Ambrosio, Giorgio (Fermilab) ; Anderssen, Eric (LBL, Berkeley) ; Bourcey, Nicolas (CERN) ; Cheng, Daniel W (LBL, Berkeley) ; Ferracin, Paolo (CERN) ; Grosclaude, Philippe (CERN) ; Guinchard, Michael (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Juchno, Mariusz (LBL, Berkeley) et al.
The ${\rm Nb_{3}Sn}$low-$\beta$quadrupole MQXF is being developed as a part of the High-Luminosity large hadron collider (LHC) upgrade project. The magnet will be produced in two different configurations, sharing the same cross section but with different lengths. [...]
FERMILAB-PUB-19-053-TD.-
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4000605
Fulltext: PDF;
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4.
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Mechanical design analysis of MQXFB, the 7.2-m-long low-$\beta$ quadrupole for the High-Luminosity LHC upgrade
/ Vallone, Giorgio (CERN) ; Ambrosio, Giorgio (Fermilab) ; Bourcey, Nicolas (CERN) ; Cheng, Daniel W (LBL, Berkeley) ; Ferracin, Paolo (CERN) ; Grosclaude, Philippe (CERN) ; Guinchard, Michael (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Juchno, Mariusz (LBNL, Berkeley) ; Lackner, Friedrich (CERN) et al.
As part of the High-Luminosity Large Hadron Collider (LHC) Project, a set of Nb$_{3}$Sn quadrupoles are being developed, aiming to enhance the performance of the inner triplets. The new magnets, identified as MQXFA and MQXFB, will share the same cross section with two different lengths, 4.2 and 7.2 m, respectively. [...]
FERMILAB-PUB-17-374-TD.-
2017 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 28 (2017) 4003705
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4003705
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5.
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Status of the 16 T Dipole Development Program for a Future Hadron Collider
/ Tommasini, Davide (CERN) ; Arbelaez, Diego (LBL, Berkeley) ; Auchmann, Bernhard (CERN) ; Bajas, Hugues (CERN) ; Bajko, Marta (CERN) ; Ballarino, Amalia (CERN) ; Barzi, Emanuela (Fermilab) ; Bellomo, Giovanni (INFN, Milan) ; Benedikt, Michael (CERN) ; Izquierdo Bermudez, Susana (CERN) et al.
A next step of energy increase of hadron colliders beyond the LHC requires high-field superconducting magnets capable of providing a dipolar field in the range of 16 T in a 50-mm aperture with accelerator quality. These characteristics could meet the requirements for an upgrade of the LHC to twice the present beam energy or for a 100-TeV center of mass energy future circular collider. [...]
2018 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4001305
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4001305
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6.
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Mechanical Performance of Short Models for MQXF, the Nb$_{3}$Sn Low-β Quadrupole for the Hi-Lumi LHC
/ Vallone, Giorgio (CERN) ; Ambrosio, Giorgio (Fermilab) ; Anderssen, Eric (LBL, Berkeley) ; Bourcey, Nicolas (CERN) ; Cheng, Daniel W (LBL, Berkeley) ; Felice, Helene (IRFU, SPhN, Saclay) ; Ferracin, Paolo (CERN) ; Fichera, Claudio (CERN) ; Grosclaude, Philippe (CERN) ; Guinchard, Michael (CERN) et al.
In the framework of the Hi-Lumi LHC Project, CERN and U.S. LARP are jointly developing MQXF, a 150-mm aperture high-field Nb$_{3}$Sn quadrupole for the upgrade of the inner triplet of the low-beta interaction regions. [...]
2017 - 6 p.
- Published in : IEEE Trans. Appl. Supercond. 27 (2017) 4002906
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7.
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Tune and Chromaticity Control During Snapback and Ramp in 2015 LHC Operation
/ Schaumann, Michaela (CERN) ; Juchno, Mariusz (CERN) ; Lamont, Mike (CERN) ; Solfaroli Camillocci, Matteo (CERN) ; Todesco, Ezio (CERN) ; Wenninger, Jorg (CERN)
Because of current redistribution on the superconducting cables, the harmonic components of the magnetic fields of the superconducting magnets in the Large Hadron Collider (LHC) show decay during the low field injection plateau. This results in tune and chromaticity variations for the beams. [...]
CERN-ACC-2016-244.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-TUPMW029
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.TUPMW029
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8.
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Feed-Forward Corrections for Tune and Chromaticity Injection Decay During 2015 LHC Operation
/ Solfaroli Camillocci, Matteo (CERN) ; Juchno, Mariusz (CERN) ; Lamont, Mike (CERN) ; Schaumann, Michaela (CERN) ; Todesco, Ezio (CERN) ; Wenninger, Jorg (CERN)
After two years of shutdown, the Large Hadron Collider (LHC) has been operated in 2015 at 6.5 TeV, close to its designed energy. When the current is stable at low field, the harmonic components of the main circuits are subject to a dynamic variation induced by current redistribution on the superconducting cables. [...]
CERN-ACC-2016-247.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-TUPMW026
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.TUPMW026
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EPFL server
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Fulltext
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