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Cryostats for the HL-LHC magnets: Pre-series production, assembly infrastructure and project plans
/ Ramos, Délio (CERN) ; Seller, Alisdair (CERN) ; Devred, Arnaud (CERN) ; Milanese, Attilio (CERN) ; Todesco, Ezio (CERN) ; Savary, Frederic (CERN) ; Prin, Herve (CERN) ; Struik, Michael (CERN) ; Bahmane, Oussama Id (CERN) ; Izquierdo Bermudez, Susana (CERN) et al.
The superconducting system of the High Luminosity LHC project (HL LHC) at CERN comprises a total of 38 new cold masses, prototypes and spares included, all requiring cryostats for magnet operation at 1.9 K. These cryostats shall ensure optimal thermal performance, as well as magnet alignment stability over the machine lifetime. [...]
2025 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1327 (2025) , no. 1, pp. 012117
Fulltext: PDF;
In : 29th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2024, Geneva, Switzerland, 22 - 26 July 2024, pp.012117
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Assembly process and quality control of the magnet cryostats for the HL-LHC project at CERN
/ Seller, Alisdair (CERN) ; Ramos, Délio (CERN) ; Struik, Michael (CERN) ; Savary, Frédéric (CERN)
As part of the High Luminosity Large Hadron Collider Upgrade (HL-LHC) at CERN, new focusing quadrupoles, separation and recombination dipoles, and corrector magnets will be installed on either side of the ATLAS and CMS experiments. Specific cryostat designs were developed to allow for the operation of these magnets at 1.9 K. [...]
2025 - 6 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng.: 1327 (2025) , no. 1, pp. 012122
Fulltext: PDF;
In : 29th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2024, Geneva, Switzerland, 22 - 26 July 2024, pp.012122
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SHiP experiment at the SPS Beam Dump Facility
/ SHiP Collaboration
In 2024, the SHiP experiment, together with the associated Beam Dump Facility (BDF) under the auspices of the High Intensity ECN3 (HI-ECN3) project, was selected for the future physics exploitation of the ECN3 experimental facility at the SPS. [...]
arXiv:2504.06692.
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15.
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e-book
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Construction and Analysis of a Modified Nb3Sn 11 T Short Dipole Model
/ Cabrera, Carmen Abad (CERN) ; Perini, Diego (CERN) ; Bampton, Tavis Alexander (CERN) ; Bahmane, Oussama Id (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Bourcey, Nicolas (CERN) ; Devred, Arnaud (CERN) ; Vez, Ruth Diaz (CERN) ; Garion, Cedric (CERN) ; Guinchard, Michael (CERN) et al.
The 5.2-m-long, 11 T double-aperture Nb3Sn Dipole
Magnet was designed to replace some of the standard, 15-m-long
8.3 T Nb–Ti main dipole magnets in the Large Hadron Collider.
After the production and test of several of 2-m-long models, the
test of full-length 11 T series magnets revealed signs of performance
degradation in the coil ends after a sequence of electromagnetic and
thermal cycles. The possible sources for performance degradation
were categorized into two groups: issues internal to the coils and
issues with the coil support structure, in particular in the magnet
ends. [...]
2025 - 7 p.
- Published in : IEEE Trans. Appl. Supercond. 35 (2025) 1-7
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Chapter 16: 11T Dipole and New Connection Cryostats for Collimators
/ Bordini, Bernardo (CERN) ; Bottura, Luca (CERN) ; Devred, Arnaud (CERN) ; Fiscarelli, Lucio (CERN) ; Karppinen, Mikko (CERN) ; de Rijk, Gijs (CERN) ; Rossi, Lucio (CERN) ; Savary, Frédéric (CERN) ; Schörling, Daniel (CERN) ; Willering, Gerard (CERN)
This chapter describes the design of, and parameters for, the 11 T dipole [11] developed at FNAL and the European Organization for Nuclear Research (CERN) for the High Luminosity Large Hadron Collider (HL-LHC) project..
2024 - 19 p.
- Published in : Adv. Ser. Direct. High Energy Phys. 31 (2024) 371-389
Fulltext: PDF;
In : The High Luminosity Large Hadron Collider, pp.371-389
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Advanced examination of Nb$_{3}$Sn coils and conductors for the LHC luminosity upgrade: a methodology based on computed tomography and materialographic analyses
/ Santillana, I Aviles (CERN) ; Sgobba, S (CERN) ; Crouvizier, M D (CERN) ; Devred, A (CERN) ; Izquierdo, G Arnau (CERN) ; Bulat, B (CERN) ; Moros, A (CERN) ; Izquierdo Bermudez, S (CERN) ; Milanese, A (CERN) ; Savary, F (CERN) et al.
The future of particle accelerators is strongly linked to the development of high—field magnets. The European Organization for Nuclear Research (CERN) is currently developing Nb$_{3}$Sn-based magnets for the high-luminosity upgrade of the large hadron collider (HL-LHC), to fully exploit its potential and surpass the intrinsic performance limitations of Nb–Ti-based magnets. [...]
2024 - 14 p.
- Published in : Supercond. Sci. Technol. 37 (2024) 085007
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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
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High-Field Design Concept for Second Interaction Region of the Electron-Ion Collider
/ Gamage, Bamunuvita (Jefferson Lab) ; Arbelaez, Diego (LBNL, Berkeley) ; Aschenauer, Elke (Brookhaven) ; Berg, J (Brookhaven) ; Ent, Rolf (Jefferson Lab) ; Ferracin, Paolo (LBNL, Berkeley) ; Morozov, Vasiliy (ORNL, Oak Ridge (main)) ; Rajput-Ghoshal, Renuka (Jefferson Lab) ; Sabbi, GianLuca (LBNL, Berkeley) ; Satogata, Todd (Jefferson Lab) et al.
Efficient realization of the scientific potential of the Electron Ion Collider (EIC) calls for addition of a future second Interaction Region (2nd IR) and a detector in the RHIC IR8 region after the EIC project completion. The second IR and detector are needed to independently cross-check the results of the first detector, and to provide measurements with complementary acceptance. [...]
FERMILAB-CONF-22-989-TD.-
2022 - 3 p.
- Published in : JACoW NAPAC 2022 (2022) WEPA15
Fulltext: Publication - PDF; FERMILAB-CONF-22-989-TD - PDF; External links: JLAB Document Server; Fermilab Library Server
In : 4th North American Particle Accelerator Conference (NAPAC 2022), Albuquerque, NM, United States, 7-12 Aug 2022, pp.WEPA15
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Final design of the cryostat for the high luminosity LHC magnets
/ Ramos, D (CERN) ; Vande Craen, A (CERN) ; Prin, H (CERN) ; Leclercq, Y (CERN) ; Williams, L (CERN) ; Struik, M (CERN) ; Barlow, G (CERN) ; Riu Martinez, O (CERN) ; Wong Luis, B (CERN) ; Parma, V (CERN) et al.
The high luminosity LHC project (HL-LHC) aims at increasing proton collisions by a factor of ten whilst extending physics exploitation until 2035. Its performance will rely on new focusing quadrupoles, beam separation dipoles and corrector magnets with large apertures to be installed on both sides of the ATLAS and CMS experiments. [...]
2022 - 9 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 1240 (2022) 012136
Fulltext: PDF;
In : Cryogenic Engineering Conference and International Cryogenic Materials Conference, Online, 19 - 23 Jul 2021, pp.012136
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