CERN Accelerating science

CERN Document Server Sök i 181 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.59 sekunder. 
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.
Reduced Order Hysteretic Magnetization Model for Composite Superconductors / Dular, Julien (CERN) ; Verweij, Arjan (CERN) ; Wozniak, Mariusz (CERN)
In this paper, we propose the Reduced Order Hysteretic Magnetization (ROHM) model to describe the magnetization and instantaneous power loss of composite superconductors subject to time-varying magnetic fields. [...]
arXiv:2409.13653.
- 20.
Fulltext
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.
Chapter 12: Machine Protection in the High Luminosity LHC / Apollonio, A ; Bélanger, P (CERN) ; Carrillo, D (CERN) ; Denz, R (CERN) ; Mateos, F Rodriguez (CERN) ; Panev, B (CERN) ; Siemko, A (CERN) ; Uythoven, J (CERN) ; Verweij, A (CERN) ; Wollmann, D (CERN) et al.
In the high luminosity era of the LHC, the energy stored in the two beams will nearly double as compared with the design value of the current LHC and the beta functions will significantly increase in critical locations. In addition, novel equipment like Nb3Sn based superconducting magnets, crab cavities, hollow e-lenses and others will be installed. [...]
2024 - 19 p. - Published in : Adv. Ser. Direct. High Energy Phys. 31 (2024) 297-315 Fulltext: PDF;
In : The High Luminosity Large Hadron Collider, pp.297-315
5.
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;
6.
Coupled Axial and Transverse Currents Method for Finite Element Modelling of Periodic Superconductors / Dular, Julien (CERN) ; Magnus, Fredrik (CERN ; Norwegian U. Sci. Tech.) ; Schnaubelt, Erik (CERN ; Darmstadt, Tech. Hochsch.) ; Verweij, Arjan (CERN) ; Wozniak, Mariusz (CERN)
In this paper, we propose the Coupled Axial and Transverse currents (I) (CATI) method, as an efficient and accurate finite element approach for modelling the electric and magnetic behavior of periodic composite superconducting conductors. The method consists of a pair of two-dimensional models coupled via circuit equations to account for the conductor geometrical periodicity. [...]
arXiv:2404.09775.- 2024-07-29 - 18 p. - Published in : Supercond. Sci. Technol. 37 (2024) 095002 Fulltext: 2404.09775 - PDF; document - PDF;
7.
Parallel-in-Time Integration of Transient Phenomena in No-Insulation Superconducting Coils Using Parareal / Schnaubelt, Erik (CERN ; Darmstadt, Tech. U.) ; Wozniak, Mariusz (CERN) ; Dular, Julien (CERN) ; Cortes Garcia, Idoia (Eindhoven, Tech. U.) ; Verweij, Arjan (CERN) ; Schöps, Sebastian (Darmstadt, Tech. U.)
High-temperature superconductors (HTS) have the potential to enable magnetic fields beyond the current limits of low-temperature superconductors in applications like accelerator magnets. [...]
arXiv:2404.13333.
- 9 p.
Fulltext
8.
An open-source 3D FE quench simulation tool for no-insulation HTS pancake coils / Atalay, Sina (CERN ; Bogazici U.) ; Schnaubelt, Erik (CERN ; Darmstadt, Tech. Hochsch.) ; Wozniak, Mariusz (CERN) ; Dular, Julien (CERN) ; Zachou, Georgia (CERN ; Natl. Tech. U., Athens) ; Schöps, Sebastian (Darmstadt, Tech. Hochsch.) ; Verweij, Arjan (CERN)
A new module, Pancake3D, of the open-source Finite Element Quench Simulator (FiQuS) has been developed in order to perform transient simulations of no-insulation (NI) high-temperature superconducting (HTS) pancake coils in 3-dimensions. FiQuS/Pancake3D can perform magnetodynamic or coupled magneto-thermal simulations. [...]
arXiv:2311.09177.- 2024-05-08 - 11 p. - Published in : Supercond. Sci. Technol. 37 (2024) 065005 Fulltext: Publication - PDF; 2311.09177 - PDF;
9.
LHC Upgrades in preparation of Run 3 / Arduini, G (CERN) ; Baglin, V (CERN) ; Bartosik, H (CERN) ; Bottura, L (CERN) ; Bracco, C (CERN) ; Bradu, B (CERN) ; Bregliozzi, G (CERN) ; Brodzinski, K (CERN) ; Bruce, R (CERN) ; Calviani, M (CERN) et al.
The Large Hadron Collider (LHC) Long Shutdown 2(2019–2021), following LHC Run 2, was primarily dedicated to theupgrade of the LHC Injectors but it included also a significantamount of activities aimed at consolidation of the LHC machinecomponents, removal of known limitations and initial upgrades inview of the High-Luminosity LHC (HL-LHC) to favour the intensityramp-up during Run 3 (2022–2025). An overview of the majormodifications to the accelerator and its systems is followed by asummary of the results of the superconducting magnet trainingcampaign to increase the LHC operation energy beyond the maximumvalue of 6.5 TeV reached during Run 2. [...]
2024 - 138 p. - Published in : JINST 19 (2024) P05061 Fulltext: PDF;
In : The Large Hadron Collider and The Experiments for Run 3, pp.P05061
10.
Quench Protection of Stacks of No-Insulation HTS Pancake Coils by Capacitor Discharge / Mulder, Tim (CERN) ; Wozniak, Mariusz (CERN) ; Verweij, Arjan (CERN)
No-Insulation (NI) technology for HTS coils has been around for a decade and is a proven method to protect small pancake coils in case of a quench. Without turn-to-turn insulation, excess current can bypass a sudden resistive part, thereby possibly preventing damaging the conductor locally. [...]
2024 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4703906

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