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1.
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A Simplified Approach to Simulate Quench Development in a Superconducting Magnet
/ Janitschke, Marvin (CERN ; Berlin, Tech. U.) ; Mentink, Matthias (CERN) ; Murgia, Federica (CERN ; U. Bologna (main)) ; Pracht, Dimitri (CERN ; QUEST, Hannover) ; Ravaioli, Emmanuele (CERN) ; Verweij, Arjan P (CERN)
Cross-sectional 2D models often represent a computationally efficient alternative to full 3D models, when simulating complex multi-physical magnet systems. However, especially for the case of self-protected, superconducting magnets, where the stored energy has to be dissipated within the magnet coils, the thermal diffusion and the quench development in all three dimensions become key aspects. [...]
2021 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 31 (2021) 4000905
Fulltext: PDF;
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2.
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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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3.
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A Coupled A–H Formulation for Magneto-Thermal Transients in High-Temperature Superconducting Magnets
/ Bortot, Lorenzo (CERN) ; Auchmann, Bernhard (CERN) ; Garcia, Idoia Cortes (Darmstadt, Tech. U.) ; De Gersem, Herbert (Darmstadt, Tech. U.) ; Maciejewski, Michal (CERN) ; Mentink, Matthias (CERN) ; Schöps, Sebastian (Darmstadt, Tech. U.) ; Van Nugteren, Jeroen (CERN) ; Verweij, Arjan P. (CERN)
The application of high-temperature superconductors to accelerator magnets for future particle colliders is under study. Numerical methods are crucial for an accurate evaluation of the complex dynamical behavior of the magnets, especially concerning the magnetic field quality and thermal behavior. [...]
arXiv:1909.03312.-
2020-01-27 - 11 p.
- Published in : IEEE Trans. Appl. Supercond. 30 (2020) 4900911
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4.
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Quench protection of the 16 T Nb3Sn dipole magnets designed for the Future Circular Collider
/ Salmi, Tiina (Tampere U. of Tech.) ; Prioli, Marco (CERN) ; Stenvall, Antti (Tampere U. of Tech.) ; Verweij, Arjan P (CERN)
Three different 16 T dipole magnet options for the Future Circular Collider (FCC) have been designed within the H2020 EuroCirCol collaboration, namely a cosθ-, a block-, and a common-coil -type of magnet. All magnets were designed using the same constraints related to magnetic field, cable parameters, mechanics, and quench protection. [...]
2019 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 29 (2019) 4700905
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5.
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Simulation of a quench event in the upgraded High-Luminosity LHC Main dipole circuit including the 11 T Nb$_{3}$Sn dipole magnets
/ Fernandez Navarro, Alejandro Manuel (CERN) ; Maciejewski, Michal (CERN) ; Verweij, Arjan P (CERN) ; Bortot, Lorenzo (CERN) ; Mentink, Matthias (CERN) ; Prioli, Marco (CERN) ; Auchmann, Bernhard (PSI, Villigen) ; Izquierdo Bermudez, Susana (CERN) ; Ravaioli, Emmanuele (LBNL, Berkeley) ; Yammine, Samer (CERN)
To achieve the goal of increased luminosity, two out of eight main dipole circuits of the accelerator will be reconfigured in the coming LHC upgrade by replacing one standard 14.3-m long, Nb-Ti-based, 8.3 T dipole magnet by two 5.3-m long, Nb$_{3}$Sn-based, 11.2 T magnets (MBH). The modified dipole circuits will contain 153 Nb-Ti magnets and two MBH magnets. [...]
2018 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4702605
In : 13th European Conference on Applied Superconductivity, ICCG, Geneva, Switzerland, 17 - 21 Sep 2017, pp.4702605
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6.
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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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7.
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8.
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Suitability of Different Quench Protection Methods for a 16 T Block-Type $Nb_3Sn$ Accelerator Dipole Magnet
/ Salmi, Tiina (Tampere U. of Tech.) ; Prioli, Marco (CERN) ; Stenvall, Antti (Tampere U. of Tech.) ; Ruuskanen, Janne (Tampere U. of Tech.) ; Verweij, Arjan P (CERN) ; Auchmann, Bernhard (CERN) ; Marinozzi, Vittorio (INFN, Milan)
Within the future circular collider study, a 100-km long circular hadron collider is being designed for 100 TeV center-of-mass collision energies. The design of the 16 T $Nb_3Sn$ bending dipole magnets is carried out within the EuroCirCol collaboration. [...]
2017 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 27 (2017) 4702305
In : Applied Superconductivity Conference, Denver, CO, USA, 4 - 9 Sep 2016, pp.4702305
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9.
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A Consistent Simulation of Electrothermal Transients in Accelerator Circuits
/ Bortot, Lorenzo (CERN) ; Maciejewski, Michal (CERN) ; Prioli, Marco (CERN) ; Navarro, Alejando M Fernandez (CERN) ; Ghini, Jonas Blomberg (CERN) ; Auchmann, Bernhard (CERN) ; Verweij, Arjan P (CERN)
Abstract:
Transient effects occurring in a superconducting accelerator circuit can be correctly simulated only if the models consistently account for the electrothermodynamic coupling between the magnets, the protection systems, and the remaining network. We present a framework based on the idea of cosimulation. [...]
2017 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 27 (2017) 4001305
In : Applied Superconductivity Conference, Denver, CO, USA, 4 - 9 Sep 2016, pp.4001305
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10.
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The 16 T Dipole Development Program for FCC
/ Tommasini, Davide (CERN) ; Auchmann, B (CERN) ; Bajas, Hugues (CERN) ; Bajko, Marta (CERN) ; Ballarino, Amalia (CERN) ; Bellomo, Giovanni (INFN, Milan) ; Benedikt, Michael (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Bordini, Bernardo (CERN) ; Bottura, Luca (CERN) et al.
Abstract:
A key challenge for a future circular collider (FCC) with centre-of-mass energy of 100 TeV and a circumference in the range of 100 km is the development of high-field superconducting accelerator magnets, capable of providing a 16 T dipolar field of accelerator quality in a 50 mm aperture. This paper summarizes the strategy and actions being undertaken in the framework of the FCC 16 T Magnet Technology Program and the Work Package 5 of the EuroCirCol..
2017 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 27 (2017) 4000405
In : Applied Superconductivity Conference, Denver, CO, USA, 4 - 9 Sep 2016, pp.4000405
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