CERN Accelerating science

CERN Document Server Pronađeno je 39 zapisa  1 - 10slijedećikraj  idi na zapis: Pretraživanje je potrajalo 0.76 sekundi 
1.
Analysis of the short-to-ground event in the LARP-AUP MQXFAP1 magnet, and its implication on the production and tests of the series magnets / Marinozzi, Vittorio (Fermilab) ; Ambrosio, Giorgio (Fermilab) ; Muratore, Joseph (Brookhaven) ; Joshi, Piyush (Brookhaven) ; Ravaioli, Emmanuele (CERN) ; Stoynev, Stoyan (Fermilab) ; Wanderer, Peter (Fermilab)
Starting from 2022, the Large Hadron Collider (LHC) at CERN will be shut down to increase the luminosity of the machine. [...]
FERMILAB-PUB-18-580-TD.
- 2018. - 5 p.
Fermilab Library Server (fulltext available) - Fulltext
2.
Validation of the Protection Scheme for the HL-LHC MBRD Magnet by Simulations and Prototype Tests / Caiffi, Barbara (INFN, Genoa) ; Bender, Lennard (Hochschule, Eng. Econ., Karlsruhe) ; Bersani, Andrea (INFN, Genoa) ; Bracco, Michela (INFN, Genoa) ; Farinon, Stefania (INFN, Genoa) ; Foussat, Arnaud (CERN) ; Gagno, Andrea (INFN, Genoa) ; Levi, Filippo (INFN, Genoa) ; Mangiarotti, Franco (CERN) ; Ninet, Gaelle (CERN) et al.
The High-Luminosity upgrade of the Large Hadron Collider (LHC) (Todesco et al., 2021) foresees the replacement of the magnets around the interaction points of the ATLAS and CMS experiments at CERN. One of the new magnets is the separation-recombination dipole, also called Main Bending Recombination Dipole (MBRD)(Caiffi et al., 2021), (Levi et al., 2022) in the D2 cryomagnet assembly. [...]
2024 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4001405
3.
Interpretable Anomaly Detection in the LHC Main Dipole Circuits With Nonnegative Matrix Factorization / Obermair, Christoph (CERN ; Graz, Tech. U.) ; Apollonio, Andrea (CERN) ; Charifoulline, Zinour (CERN) ; Felsberger, Lukas (CERN) ; Janitschke, Marvin (CERN ; U. Rostock) ; Pernkopf, Franz (Graz, Tech. U.) ; Ravaioli, Emmanuele (CERN) ; Verweij, Arjan (CERN) ; Wollmann, Daniel (CERN) ; Wozniak, Mariusz (CERN)
CERN's Large Hadron Collider (LHC), with its eight superconducting main dipole circuits, has been in operation for over a decade. During this time, relevant operational parameters of the circuits, including circuit current, voltages across magnets and their coils, and current to ground, have been recorded. [...]
2024 - 12 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4004112 Fulltext: PDF;
4.
Analysis of Powering and Quench Protection of the SIGRUM Superconducting Combined-Function Dipole Magnet / Ferrentino, Vittorio (Naples U. ; CERN) ; Arpaia, Pasquale (Naples U. ; CERN) ; Gilardi, Antonio (SLAC) ; Karppinen, Mikko (CERN) ; Kokkinos, Charilaos ; Ravaioli, Emmanuele (CERN)
In particle accelerators devoted to hadron therapy treatments, the magnet design plays an essential role in ensuring the safety of the patients under treatment. An incorrect setting or malfunctioning may cause damage to healthy tissues and cells. [...]
2023 - 8 p. - Published in : IEEE Trans. Appl. Supercond. 33 (2023) 1-8
5.
Quench Co-Simulation of Canted Cos-Theta Magnets / Wozniak, Mariusz (CERN) ; Schnaubelt, Erik (CERN ; Darmstadt, Tech. U.) ; Dular, Julien (CERN) ; Ravaioli, Emmanuele (CERN) ; Verweij, Arjan (CERN)
Canted Cos-Theta (CCT) magnets can use conducting formers in which eddy currents are induced during current change. This is relevant during magnet ramping or discharging after a quench, particularly when using energy extraction. [...]
2024 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 34 (2024) 4900105
6.
Quench Protection of the HL-LHC Hollow Electron Lens Superconducting Solenoid Magnets / Wozniak, Mariusz (CERN) ; Foussat, Arnaud (CERN) ; Yammine, Samer (CERN) ; Steckert, Jens (CERN) ; Ravaioli, Emmanuele (CERN) ; Verweij, Arjan (CERN) ; Kolehmainen, Antti (CERN) ; Redaelli, Stefano (CERN) ; Rossi, Adriana (CERN)
The High-Luminosity LHC (HL-LHC) project is an upgrade of the Large Hadron Collider (LHC) and comprises the installation of two Hollow Electron Lens (HEL) systems, each acting on one beam on both sides of LHC Point 4. The systems aim for a controlled depletion of hadron beam tails and an enhanced hadron beam halo collimation. [...]
2022 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 32 (2022) 4701205
In : 27th International Conference on Magnet Technology (MT-27), Fukuoka, Japan, 15 - 19 Nov 2021, pp.4701205
7.
Fast Quench Propagation Conductor for Protecting Canted Cos-Theta Magnets / Wozniak, Mariusz (CERN) ; Ravaioli, Emmanuele (CERN) ; Verweij, Arjan (CERN)
Canted Cos-Theta (CCT) magnet design offers remarkable advantages such as a low number of parts and the ability to intercept with the formers the Lorenz forces acting on the windings. However, by principle, it is very challenging to design a self-protected CCT magnet, even with relatively low stored energy and conductor current density. [...]
2023 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4701705
In : Applied Superconductivity Conference, Honolulu, Hawaii, United States, 23 - 28 Oct 2022
8.
Protection Scheme Effectiveness Study for the High-Luminosity LHC MBRD Magnet / Caiffi, Barbara (INFN, Genoa) ; Bender, Lennard (Hochschule, Eng. Econ., Karlsruhe) ; Bersani, Andrea (INFN, Genoa) ; Farinon, Stefania (INFN, Genoa) ; Foussat, Arnaud (CERN) ; Levi, Filippo (INFN, Genoa) ; Mangiarotti, Franco (CERN) ; Musenich, Riccardo (INFN, Genoa) ; Novelli, Daniel (INFN, Genoa) ; Pampaloni, Alessandra (INFN, Genoa) et al.
The MBRD (Main Bending Recombination Dipole, or D2) is one of the magnets in the interaction region of the LHC that needs to be replaced in order to fulfill the requirements of the High-Luminosity upgrade. The magnetic field must be increased up to 4.5 T in an aperture with a diameter of 105 mm and a total length of about 8 m, to reach the target integrated field of 35 Tm. [...]
2023 - 4 p. - Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4701304
In : Applied Superconductivity Conference, Honolulu, Hawaii, United States, 23 - 28 Oct 2022
9.
An Open-Source Finite Element Quench Simulation Tool for Superconducting Magnets / Vitrano, Andrea (CERN) ; Wozniak, Mariusz (CERN) ; Schnaubelt, Erik (CERN ; Darmstadt, Tech. Hochsch.) ; Mulder, Tim (CERN) ; Ravaioli, Emmanuele (CERN) ; Verweij, Arjan (CERN)
An open-source Finite Element Quench Simulator (FiQuS) is being developed as part of the STEAM framework following CERN's open science policy (CERN, 2022). The tool is based solely on open-source software and uses Python to generate geometries and meshes with Gmsh and compute solutions with GetDP. [...]
2023 - 6 p. - Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4702006 Fulltext: PDF;
10.
External Coil Coupled Loss Induced Quench (E-CLIQ) System for the Protection of LTS Magnets / Mulder, Tim (CERN) ; Bordini, Bernardo (CERN) ; Ravaioli, Emmanuele (CERN) ; Schnaubelt, Erik (CERN ; Darmstadt, Tech. Hochsch.) ; Wozniak, Mariusz (CERN) ; Verweij, Arjan (CERN)
The next generation of Nb 3 Sn accelerator magnets are pushed to higher magnetic fields, higher stored energy and higher energy density. This brings additional challenges when it comes to quench protection. [...]
2023 - 5 p. - Published in : IEEE Trans. Appl. Supercond. 33 (2023) 4702105 Fulltext: PDF;

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