CERN Accelerating science

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1.
MuCol Milestone Report No. 5: Preliminary Parameters / MuCoL Collaboration
This document is comprised of a collection of updated preliminary parameters for the key parts of the muon collider. [...]
arXiv:2411.02966.
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Fermilab Library Server - Fulltext - Fulltext
2.
Radiation shielding studies for superconducting magnets in multi-TeV muon colliders / Lechner, Anton (CERN) ; Amorim, David (CERN) ; Bottura, L (CERN) ; de Sousa, P Borges (CERN) ; Caiffi, B (INFN, Genoa) ; Calzolari, D (CERN) ; Carli, C (CERN) ; Ferreira Somoza, J (CERN) ; Frasca, A (CERN) ; Lerner, G (CERN) et al.
Circular muon colliders provide the potential to explore center-of-mass energies at the multi-TeV scale within a relatively compact footprint. Because of the short muon lifetime, only a small fraction of stored beam particles will contribute to the physics output, while most of the muons will decay in the collider ring. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) WEPR26 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPR26
3.
Cover not available Interim report for the International Muon Collider Collaboration / Accettura, C.
The International Muon Collider Collaboration (IMCC) [1] was established in 2020 following the recommendations of the European Strategy for Particle Physics (ESPP) and the implementation of the European Strategy for Particle Physics-Accelerator R&D Roadmap by the Laboratory Directors Group [2], [...]
arXiv:2407.12450 ; CERN-2024-002 - Geneva : CERN, 2024-09-30 - 150. (CERN Yellow Reports: Monographs ; 2/2024)


e-book
4.
Not yet available
Heat transfer, cryostat, conduction cooling I / Van Weelderen, Rob (speaker) (CERN)
For one-of-a-kind superconducting-, or small numbers of, superconducting-magnets one usually can afford to be more relaxed on energy consumption and cryogen consumables than for the magnets making up the core of a multi-km long particle accelerator. From the point of view of thermal design conceptions of accelerator magnets we'll address the energetic notions that come into play when having to decide for a new project. [...]
2023 - 2679. CERN Accelerator School; CAS course on "Normal- and Superconducting Magnets", 19 November - 02 December 2023, St. Pölten, Austria External links: Talk details; Event details In : CAS course on "Normal- and Superconducting Magnets", 19 November - 02 December 2023, St. Pölten, Austria
5.
Not yet available
Heat transfer, cryostat, conduction cooling II / Van Weelderen, Rob (speaker) (CERN)
For one-of-a-kind superconducting-, or small numbers of, superconducting-magnets one usually can afford to be more relaxed on energy consumption and cryogen consumables than for the magnets making up the core of a multi-km long particle accelerator. From the point of view of thermal design conceptions of accelerator magnets we'll address the energetic notions that come into play when having to decide for a new project. [...]
2023 - 3012. CERN Accelerator School; CAS course on "Normal- and Superconducting Magnets", 19 November - 02 December 2023, St. Pölten, Austria External links: Talk details; Event details In : CAS course on "Normal- and Superconducting Magnets", 19 November - 02 December 2023, St. Pölten, Austria
6.
Chapter 14: Cryogenics for the HL-LHC / Claudet, S (CERN) ; Ferlin, G (CERN) ; Monneret, E (CERN) ; Perin, A (CERN) ; Sisti, M (CERN) ; Van Weelderen, R (CERN) ; Lees, A (CERN) ; Gahier, V (CERN) ; Brodzinski, K (CERN) ; Delprat, L (CERN)
The discovery of a Higgs boson at CERN in 2012 was the start of a major program working to measure this particle’s properties with the highest possible precision for testing the validity of the Standard Model and to search for further new physics at the energy frontier. The LHC is in a unique position to pursue this program. [...]
2024 - 14 p. - Published in : Adv. Ser. Direct. High Energy Phys. 31 (2024) 341-354 Fulltext: PDF;
In : The High Luminosity Large Hadron Collider, pp.341-354
7.
An experimental and numerical framework to assess the temperature distribution in complex He II-cooled magnet geometries / Puthran, Kirtana (CERN) ; Borges de Sousa, Patricia (CERN) ; Murberg, Lise (CERN ; Norwegian U. Sci. Tech.) ; Koettig, Torsten (CERN) ; van Weelderen, Rob (CERN)
In the context of the High Luminosity upgrade of the Large Hadron Collider at CERN, a framework implementing experimental techniques and numerical analysis has been developed to systematically assess the temperature distribution in complex He II-cooled composite magnet geometries. The experiments are designed to measure the heat transfer coefficients in the magnet coil layers using coil samples in a stagnant superfluid helium bath. [...]
2024 - 10 p. - Published in : Cryogenics 141 (2024) 103888 Fulltext: PDF;
8.
Magnets for a Muon Collider—Needs and Plans / Bottura, L (CERN) ; Accettura, C (CERN) ; Amemiya, N (Kyoto U.) ; Auchmann, B (PSI, Villigen) ; Berg, J S (Brookhaven Natl. Lab.) ; Bersani, A (INFN, Genoa) ; Bertarelli, A (CERN) ; Boattini, F (CERN) ; Bordini, B (CERN) ; Borges de Sousa, P (CERN) et al.
We describe the magnet challenges for a Muon Collider, an exciting option considered for the future of particle physics at the energy frontier. Starting from the comprehensive work performed by the US Muon Accelerator Program, we have reviewed the performance specifications dictated by beam physics and the operating conditions to satisfy the accelerator needs. [...]
2024 - 8 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 1-8 Fulltext: PDF;
9.
Numerical Assessment of the Inhomogeneous Temperature Field and the Quality of Heat Extraction of Nb3Sn Impregnated Magnets for the High Luminosity Upgrade of the LHC / de Sousa, Patricia Borges (CERN) ; Puthran, Kirtana (CERN ; KIT, Karlsruhe) ; Sabaté-Gilarte, Marta (CERN) ; Cerutti, Francesco (CERN) ; Izquierdo Bermudez, Susana (CERN) ; Todesco, Ezio (CERN) ; van Weelderen, Rob (CERN)
The High Luminosity upgrade of the Large Hadron Collider (HL-LHC) at CERN foresees the installation of Nb3Sn-based quadrupole magnets at selected interaction points of the accelerator. The precise knowledge of each magnet's thermal characteristics and heat extraction performance in response to power depositions during both nominal and ultimate conditions is essential in determining safe operating margins. [...]
2023 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4000705
In : Applied Superconductivity Conference, Honolulu, Hawaii, United States, 23 - 28 Oct 2022
10.
Challenges and Lessons Learned From Fabrication, Testing, and Analysis of Eight MQXFA Low Beta Quadrupole Magnets for HL-LHC / Ambrosio, Giorgio (Fermilab) ; Amm, Kathleen (Brookhaven) ; Anerella, Michael (Brookhaven) ; Apollinari, Giorgio (Fermilab) ; Izquierdo, Gonzalo Arnau (CERN) ; Baldini, Maria (Fermilab) ; Ballarino, Amalia (CERN) ; Barth, Christian (CERN) ; Yahia, Anis Ben (Brookhaven) ; Blowers, James (Fermilab) et al.
By the end of October 2022, the US HL-LHC Accelerator Upgrade Project (AUP) had completed fabrication of ten MQXFA magnets and tested eight of them. The MQXFA magnets are the low beta quadrupole magnets to be used in the Q1 and Q3 Inner Triplet elements of the High Luminosity LHC. [...]
arXiv:2301.09523; FERMILAB-PUB-22-855-TD.- 2023-08 - 8 p. - Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4003508 Fulltext: 2301.09523 - PDF; 81b192c337ae5d5acaec37450e135529 - PDF; External link: Fermilab Library Server

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