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A Combined Testing and Modelling Methodology for the Mechanics of High-Field Superconducting Magnets
/ Bertarelli, Alessandro (CERN) ; Guinchard, Michael (CERN) ; Holko, Michal (CERN) ; Lackner, Friedrich (CERN) ; Masci, Marco (CERN) ; de Frutos, Oscar Sacristan (CERN) ; Savary, Frédéric (CERN) ; Wolf, Felix (CERN)
The use of superconducting composite cables based
on Nb3Sn, an intermetallic compound of Niobium and Tin, is one
of the favorite routes to reach magnetic fields higher than 10 T
in state-of-the-art accelerator magnets. The brittle and nonlinear
nature of the epoxy-impregnated Nb3Sn Rutherford cable makes
challenging to predict its mechanical limits and, consequently, the
overall performance of the magnet. [...]
2024 - 11 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 1-11
Fulltext: PDF;
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The Development of MBRD Magnets, the Separation/Recombination Dipoles for the LHC High Luminosity Upgrade
/ Farinon, Stefania (INFN, Genoa) ; Angius, Silvano (ASG Supercond., Genova) ; Barutti, Alberto (ASG Supercond., Genova) ; Bersani, Andrea (INFN, Genoa) ; Bracco, Michela (Genoa U. ; INFN, Genoa) ; Caiffi, Barbara (INFN, Genoa) ; Fabbricatore, Pasquale (INFN, Genoa) ; Fiscarelli, Lucio (CERN) ; Foussat, Arnaud (CERN) ; Gagno, Andrea (Genoa U. ; INFN, Genoa) et al.
As part of the high-luminosity upgrade of CERN LHC accelerator project, the National Institute of Nuclear Physics (INFN) in Genoa, Italy, has developed the MBRD separation-recombination dipole, also known as D2, whose function is to bring beams into collision before and after the interaction regions of the CMS and ATLAS experiments. It is a NbTi cos-theta double aperture dipole that generates a 4.5 T field in a 105 mm aperture, with a magnetic length of 7.78 m, and has the specific feature that the magnetic field in the two apertures is oriented in the same direction. [...]
2024 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4003205
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Assembly and Power Tests of the Long Orbit Nested Corrector Prototype for HL-LHC
/ Durán, Ó (Madrid, CIEMAT) ; Domínguez, M (Madrid, CIEMAT) ; García-Matos, J A (Madrid, CIEMAT ; GIFT, Spain) ; García-Tabarés, L (Madrid, CIEMAT) ; González, L A (Madrid, CIEMAT) ; Martínez, T (Madrid, CIEMAT) ; Jardim, C Martins (Madrid, CIEMAT) ; Pérez, J M (Madrid, CIEMAT) ; Toral, F (Madrid, CIEMAT) ; Fiscarelli, L (CERN) et al.
MCBXFA magnets are long orbit nested correctors for the high luminosity upgrade of the LHC. They are the 2.5 m long version of the short orbit correctors MCBXFB, sharing the same cross-section. [...]
2024 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4101005
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Assembly and Test Results of the RMM1a,b Magnet, a CERN Technology Demonstrator Towards Nb3Sn Ultimate Performance
/ Gautheron, Emma (CERN) ; Bordini, Bernardo (CERN) ; Campagna, Guillaume (CERN) ; Felice, Hélène (CERN) ; Fleiter, Jerome (CERN) ; Guinchard, Michael (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Mugnier, Sylvain (CERN) ; Perez, Juan Carlos (CERN) ; Petrone, Carlo (CERN) et al.
As part of the High Field Magnet technology development carried out at CERN, demonstrators are under construction to explore the full potential of Nb 3 Sn. The Racetrack Model Magnet (RMM) is one of them, building upon the successful Enhanced Racetrack Model Coil (eRMC) eRMC1a magnet which reached 16.5 T peak field or 16.3 T bore field at 1.9 K. [...]
2023 - 8 p.
- Published in : IEEE Trans. Appl. Supercond. 33 (2023) 1-8
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First considerations on the supporting structures of FCC-ee booster and collider in the arc regions
/ Carra, F (CERN) ; Baudin, L (CERN) ; Bauche, J (CERN) ; Artoos, K (CERN) ; Atieh, S (CERN) ; Bertarelli, A (CERN) ; Brunner, O (CERN) ; Capatina, O (CERN) ; Chance, A (Saclay) ; Chemli, S (CERN) et al.
In 2022, the FCC Feasibility Study management mandated aworking group to analyse the best configuration of the FCC-ee tunnelin the arc regions, in view of the construction of a mock-up of thearc half-cell. One of the main and most challenging goals of thestudy, named FCC-ee Arc Half-Cell Mock-up Project, was toperform a preliminary investigation on the principles of supportingthe Short-Straight Sections and dipoles of the half-cells, both forthe booster and for the collider machines. [...]
2024 - 7 p.
- Published in : JINST 19 (2024) T02008
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Beam-beam long range compensator mechanical demonstrator
/ Sito, Leonardo (CERN ; Naples U.) ; Rossi, Adriana (CERN) ; Bertarelli, Alessandro (CERN) ; Accettura, Carlotta (CERN) ; Carra, Federico (CERN) ; Motschmann, Fritz (CERN) ; Sterbini, Guido (CERN) ; Guardia Valenzuela, J (CERN) ; Gentini, Luca (CERN) ; Garlaschè, Marco (CERN) et al.
Beam-Beam Long-Range Compensators employing current-carrying wires are considered as valuable options in hadron colliders to increase dynamic aperture at small crossing angles. This paper presents a simple design proposal for application at CERN LHC. [...]
2023 - 3 p.
- Published in : JACoW IPAC 2023 (2023) THPM015
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPM015
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Impact of Vibration to HL-LHC Performance During the FPF Facility Construction
/ Gamba, D (CERN) ; Bartosik, H (CERN) ; Wenninger, J (CERN) ; Widuch, K (CERN) ; Pal, K (CERN) ; Guinchard, M (CERN)
The Forward Physics Facility (FPF) is a proposed experimental facility to be installed several hundred meters downstream from the ATLAS interaction point to intercept long-lived particles and neutrinos produced along the beam collision axis and which are therefore outside of the acceptance of the ATLAS detector. The construction of this facility, and in particular the excavation of the associated shaft and cavern, could take place in parallel to beam operation in the CERN accelerator complex. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPA039
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPA039
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FCC-ee arc half-cell: preliminary design & integration studies, with ideas for a mock-up
/ Carra, F (CERN) ; Baudin, L (CERN) ; Bauche, J (CERN) ; Artoos, K (CERN) ; Atieh, S (CERN) ; Bertarelli, A (CERN) ; Brunner, O (CERN) ; Capatina, O (CERN) ; Chance, A (Saclay) ; Chemli, S (CERN) et al.
During 2022, a dedicated study was undertaken at CERN, together with FCC Feasibility Study collaborators, aimed at proposing a robust configuration for the FCC-ee arc half cell. The proposed configuration takes into account integration aspects of the elements in the arc cross section, both for the booster and the collider, as well as aspects related to powering, cooling and ventilation, supporting and alignment, optics, instrumentation, handling and installation. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPL061
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL061
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