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1.
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Improvements of the SPS slow extraction electrostatic septum
/ Lackner, Friedrich (CERN) ; Prost, Antoine (CERN) ; Balhan, Bruno (CERN) ; Pirozzi, Fabrizio (CERN) ; Vincke, Helmut (CERN) ; Borburgh, Jan (CERN) ; Kawa, Krzysztof (CERN ; AGH-UST, Cracow) ; Jorat, Louise Olivia (CERN) ; Fraser, Matthew (CERN) ; Roudaut, Noah (CERN ; UTBM, Belfort)
The impact of high-flux protons on the inherent beam loss in the slow extraction straight from SPS towards the North Area has been recently discussed and potential improvements have been proposed. These solutions are mainly aiming to reduce the high component activation and related reduction of lifetime, as well as observed non-straightness in the anode body. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) TUPC72
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC72
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2.
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Optimization of mechanical robustness in the booster injection bumpers
/ Lackner, Friedrich (CERN) ; Atanasov, Miroslav (CERN) ; Balhan, Bruno (CERN) ; Baud, Cedric (CERN) ; Borburgh, Jan (CERN) ; M Walraven (Inholland U. Appl. Sci., Alkmaar)
During the Long Shutdown 2 (LS2) at CERN, the new Linac4 (L4) accelerator has been successfully connected to the PS Booster (PSB) to inject 160 MeV H− beam into the 4 superposed PSB rings. The horizontal displacement of the circulating beam during injection relies on 4 pulsed dipole magnets. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPM018
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPM018
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3.
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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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4.
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Test Results of the First Wax-Impregnated Nb-Ti Canted Cosine Theta Septum Magnet “SuShi”
/ Barna, D (Wigner RCP, Budapest) ; Brunner, K (Wigner RCP, Budapest) ; Borburgh, J (CERN) ; Atanasov, M (CERN) ; Lackner, F (CERN) ; Olvegård, M (Uppsala U.) ; Pepitone, K (Uppsala U.) ; Kern, Rocio Santiago (Uppsala U.) ; Svanberg, C (Uppsala U.) ; Bagni, T (Uppsala U.)
In the framework of the future circular collider study, a new septum magnet concept (“SuShi”) has been developed, and a prototype was built at Wigner RCP, and tested at the FREIA facility of Uppsala University. The concept uses a canted cosine theta (CCT)-like superconducting magnet and a passive superconducting shield to create a zero-field and high-field region within its aperture. [...]
2024 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4003105
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5.
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Training-free performance of the wax-impregnated SuShi septum magnet
/ Barna, D (Wigner RCP, Budapest) ; Brunner, K (Wigner RCP, Budapest) ; Novák, M (Wigner RCP, Budapest) ; Borburgh, J (CERN) ; Atanasov, M (CERN) ; Lackner, F (CERN) ; Olvegård, M (Uppsala U.) ; Pepitone, K (Uppsala U.) ; Santiago Kern, R (Uppsala U.) ; Svanberg, C (Uppsala U.) et al.
In the framework of the Future Circular Collider Study a new septum magnet concept, nicknamed ‘SuShi’ has been developed, and a prototype was built at Wigner Research Center for Physics, and tested at the FREIA facility of Uppsala University in April 2023. The concept uses a canted cosine theta (CCT)-like superconducting magnet and a passive superconducting shield to create a zero-field and high-field region within its aperture. [...]
2024 - 12 p.
- Published in : Supercond. Sci. Technol. 37 (2024) 045006
Fulltext: PDF;
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6.
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Design optimization of the water-cooled coil for the LEIR extraction septum
/ Lackner, Friedrich (CERN) ; Balhan, Bruno (CERN) ; Motschmann, Fritz (CERN) ; Borburgh, Jan (CERN) ; Atanasov, Miroslav (CERN) ; Masson, Thierry (CERN) ; Erends, Vera (Utrecht U.)
A pulsed septum magnet (SMH40) is used for heavy ion extraction from the Low Energy Ion Ring (LEIR). A non-conformity on the coil cooling circuit made it necessary to consolidate the design of the septum blade and related manufacturing process. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPM019
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPM019
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7.
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Mechanical Design of FalconD, a Nb$_3$Sn Cos$\theta$ Short Model Dipole for the FCC
/ Pampaloni, A (INFN, Genoa) ; Bellomo, G (Milan U. ; INFN, Milan) ; Burioli, S (INFN, Genoa ; Genoa U.) ; Caiffi, B (INFN, Genoa) ; De Matteis, E (INFN, Milan) ; Fabbricatore, P (INFN, Genoa) ; Farinon, S (INFN, Genoa) ; Felice, H (CERN) ; Lackner, F (CERN) ; Levi, F (INFN, Genoa ; Genoa U.) et al.
The future of the particle accelerators points to a new CERN’s circular collider with an order of magnitude increase in the center-of-mass energy compared to the Large Hadron Collider (LHC). To achieve this increase from 14 TeV to 100 TeV a 100 km tunnel will be required to host the collider. [...]
2022 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 32 (2022) 1-5
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8.
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Update on the Electromagnetic Design of the Nb-Sn Cos-Theta Dipole Model for FCC-hh
/ Valente, R U (U. Rome La Sapienza (main) ; LASA, Segrate) ; Burioli, S (INFN, Genoa ; Genoa U.) ; Caiffi, B (INFN, Genoa) ; Matteis, E De (LASA, Segrate) ; Fabbricatore, P (INFN, Genoa) ; Farinon, S (INFN, Genoa) ; Lackner, F (CERN) ; Levi, F (INFN, Genoa ; Genoa U.) ; Mariotto, S (LASA, Segrate) ; Musenich, R (INFN, Genoa) et al.
The Future Circular Collider (FCC) is the main option for the next generation of the High Energy Physics research. The accelerator in hadron-hadron configuration (FCC-hh) requires magnets able to generate fields of the order of 16 T to circulate particles in a 100 km circumference collider and therefore to reach 100 TeV centre of mass energy. [...]
2022 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4001005
In : 15th European Conference on Applied Superconductivity (EUCAS 2021), Online, 5 - 9 Sep 2021, pp.4001005
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9.
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Power Test of the First Two HL-LHC Insertion Quadrupole Magnets Built at CERN
/ Mangiarotti, F J (CERN) ; Willering, G (CERN) ; Fiscarelli, L (CERN) ; Bajko, M (CERN) ; Bottura, L (CERN) ; Desbiolles, V (CERN) ; Devred, A (CERN) ; Ferradas Troitino, J (CERN) ; Izquierdo Bermudez, S (CERN) ; Keijzer, R (CERN ; Twente U., Enschede) et al.
The High-Luminosity project (HL-LHC) of the
CERN Large Hadron Collider (LHC), requires low β* quadrupole
magnets in Nb$_3$Sn technology that will be installed on each side
of the ATLAS and CMS experiments. After a successful shortmodel magnet manufacture and test campaign, the project has
advanced with the production, assembly, and test of full-size 7.15-
m-long magnets. [...]
2022 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 32 (2022) 1-5
Fulltext: PDF;
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10.
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Mechanical Characterization of Nb3Sn Cable Insulation Systems Used for HL-LHC Accelerator Magnets at Ambient Temperature
/ Wolf, Felix (CERN) ; Foussat, Arnaud (CERN) ; Lackner, Friedrich (CERN) ; Sgobba, Stefano (CERN) ; Crouvizier, Mickael (CERN) ; Canfer, Simon (Daresbury) ; Robertson, Steve (Daresbury)
The performance of accelerator magnets is strongly relying on the dielectric strength and mechanical robustness of the insulation system. This is in particular relevant for the current development of high field superconducting Nb
3
Sn magnets with the insulation system made from resin-impregnated glass fibres. [...]
2022 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 32 (2022) 7700205
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.7700205
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