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1.
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Enhancing Measurement Quality in HL-LHC Magnets Testing Using Software Techniques on Digital Multimeter Cards-Based System
/ Reymond, Hubert (CERN) ; Andreassen, Odd (CERN) ; Charrondiere, Maryline (CERN) ; Charrondière, Cedric (CERN) ; Jankowski, Patryk (CERN)
The HL-LHC magnets play a critical role in the High-Luminosity Large Hadron Collider project, which aims to increase the luminosity of the LHC and enable more precise studies of fundamental physics. Ensuring the performance and reliability of these magnets requires high-precision measurements of their electrical properties during testing. [...]
2023 - 6 p.
- Published in : JACoW ICALEPCS 2023 (2023) 729-734
Fulltext: PDF;
In : 19th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2023), Cape Town, South Africa, 7 - 13 Oct 2023, pp.729-734
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2.
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Cause-and-Effect Matrix Specifications for Safety Critical Systems at CERN
/ Fernández Adiego, Borja (CERN) ; Blanco Viñuela, Enrique (CERN) ; Bonet, Mateus (Santa Catarina U.) ; Charrondiere, Maryline (CERN) ; Hamisch, Henrique (Santa Catarina U.) ; Speroni, Roberto (CERN) ; de Queiroz, Max (Santa Catarina U.)
One of the most critical phases in the development of a Safety Instrumented System (SIS) is the functional specification of the Safety Instrumented Functions (SIFs). This step is carried out by a multidisciplinary team of process, controls and safety experts. [...]
2020 - 6 p.
- Published in : 10.18429/JACoW-ICALEPCS2019-MOPHA041
Fulltext: PDF;
In : 17th Biennial International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS), New York, United States, 5 - 11 Oct 2019, pp.285
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3.
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Preliminary Test Results of the First of Series Multiplet for the Super-FRS at FAIR
/ Cho, Eunjung (Darmstadt, GSI) ; Mueller, Hans (Darmstadt, GSI) ; Sugita, Kei (Darmstadt, GSI) ; Chiuchiolo, Antonella (Darmstadt, GSI) ; Golluccio, Giancarlo (Darmstadt, GSI) ; Greiner, Florian (Darmstadt, GSI) ; Kosek, Pawel (Darmstadt, GSI) ; Roux, Christian (Darmstadt, GSI) ; Winkler, Martin (Darmstadt, GSI) ; Borceto, Alice (ASG Supercond., Genova) et al.
The first of series (FoS) multiplet built for the Super-FRS at GSI/FAIR was delivered to a dedicated magnet test facility at CERN. After a series of tests at room temperature, it was cooled down to 4.5 K and is now under cold powering test. [...]
2020 - 4 p.
- Published in : IEEE Trans. Appl. Supercond. 30 (2020) 4101504
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4.
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A New Cryogenic Test Facility for Large and Heavy Superconducting Magnets
/ Serio, Luigi (CERN) ; Schnizer, Pierre (Darmstadt, GSI) ; Arnaud, Michel (CERN) ; Bertone, Caterina (CERN) ; Blanco, Enrique (CERN) ; Calcoen, Daniel (CERN) ; Charrondiere, Maryline (CERN) ; Cho, Eun Jung (Darmstadt, GSI) ; Coelingh, Gert-Jan (CERN) ; Dahlerup-Petersen, Knud (CERN) et al.
CERN has recently designed and constructed a new cryogenic facility for testing large and heavy superconducting magnets at liquid helium temperatures. The facility, erected in a large assembly hall with cranes capable of up to 100 t, provides a cooling capacity of 1.2 kW at 4.5 K equivalent, 15-kW LN$_2$ cooling and warming capabilities for up to three magnets in parallel. [...]
2016 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 27 (2017) 9500105
In : Applied Superconductivity Conference, Denver, CO, USA, 4 - 9 Sep 2016, pp.9500105
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5.
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Performance of CERN LHC Main Dipole Magnets on the Test Bench From 2008 to 2016
/ Willering, G P (CERN) ; Bajko, M (CERN) ; Bottura, L (CERN) ; Charifoulline, Z (CERN) ; Charrondiere, M (CERN) ; D'Angelo, G (CERN) ; Dib, G (CERN) ; Ditsch, O (CERN) ; Hagen, P (CERN) ; Le Naour, S (CERN) et al.
Abstract: Throughout 2015 and 2016, the LHC is operated with a current in the main dipoles of 10980 A, equivalent to a proton-proton collision energy of 13 TeV in the center of mass. A total of 175 training quenches were needed in 2014 in the 1232 main dipole magnets installed in the LHC at CERN to reach operational conditions. [...]
2017 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 27 (2017) 4002705
In : Applied Superconductivity Conference, Denver, CO, USA, 4 - 9 Sep 2016, pp.4002705
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6.
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New Analysis Framework Software for the CERN Superconducting Magnet Test Facility
/ Gomez de la Cruz, M F (CERN) ; Andreassen, O (CERN) ; Bajas, H (CERN) ; Charrondiere, M (CERN) ; Reymond, H (CERN) ; Rijllart, A (CERN)
Since 2013, the existing but aging analysis tools that were routinely used for the large hadron collider (LHC) magnet series production measurement campaigns conducted at the CERN superconducting Magnet Test Facility (SM18) are being replaced by a novel open-data and user-driven analysis environment. This effort is running in parallel to the current development of magnet prototypes in the framework of the High Luminosity Upgrade of the CERN LHC (HL-LHC project). [...]
2016 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 26 (2016) 9500905
In : 24th International Conference on Magnet Technology, Seoul, Korea, 18 - 23 Oct 2015, pp.9500905
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7.
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Test Set-Up for the Cooling of Heavy Magnets by Controlled Way Down to 77 K
/ Bajas, H (CERN) ; Bajko, M (CERN) ; Benda, V (CERN) ; Bottura, L (CERN) ; Bourgeois, G (CERN) ; Charrondiere, M (CERN) ; Chiuchiolo, A (CERN) ; Ferracin, P (CERN) ; Guinchard, M (CERN) ; Garcia, J E Muñoz (CERN) et al.
In the scope of the High Field Magnets work package of the European FP7-EuCARD project, the structure of the future dipole magnet RMC and FRESCA2 has been tested at liquid nitrogen temperature replacing the actual Nb$_{3}$Sn-based coils by aluminium dummy coils. Such test aims at measuring during the cooling the evolution of the mechanical stresses and the temperatures via compensated strain gauges and carbon-ceramic sensors placed at various locations on the structure (shell, rods, yokes, dummy coils). [...]
2015 - 7 p.
- Published in : Phys. Procedia 67 (2015) 331-337
Elsevier Open Access article: PDF;
In : 25th International Cryogenic Conference & International Cryogenic Materials Conference 2014, Twente U., Enschede, The Netherlands, 07 - 11 Jul 2014, pp.331-337
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8.
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Dipole model test with one superconducting coil: results analysed
/ Bajas, H (CERN) ; Baudouy, B (CERN) ; Benda, V (CERN) ; Berriaud, C (CERN) ; Bajko, M (CERN) ; Bottura, L (CERN) ; Caspi, S (CERN) ; Charrondiere, M (CERN) ; Clément, S (CERN) ; Datskov, V (CERN) et al.
WP: 7: Super-conducting High Field Magnets for higher luminosities and energies
Task: 7.3: Models
This report is the deliverable report 7.3.1 “Dipole model test with one superconducting coil; results analysed “. [...]
EuCARD-PUB-2013-010.
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2013.
Access to fulltext document
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9.
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Assembly, Loading, and Cool‐down of the FRESCA2 Support Structure
/ Muñoz Garcia, J E (CERN) ; Giloux, C (CERN) ; Ziemianski, D T (CERN) ; Rondeaux, F (Saclay) ; de Rijk, G (CERN) ; Bajas, H (CERN) ; Rifflet, J M (Saclay) ; Perez, J C (CERN) ; Durante, M (Saclay) ; Charrondiere, M (CERN) et al.
This paper reports on the assembly process and cool-down to cryogenic temperature of the support structure of FRESCA2, which is a dipole magnet for upgrading the actual CERN cable test facility FRESCA. The structure of the FRESCA2 magnet is designed to provide the adequate pre-stress, through the use of keys, bladders, and an Al alloy shrinking cylinder [...]
CERN-ACC-2014-0033.-
Geneva : CERN, 2014 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 24 (2014) 4002905
Fulltext: PDF;
In : 23rd International Conference on Magnet Technology, Boston, MA, USA, 14 - 19 Jul 2013, pp.4002905
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10.
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Models and experimental results from the wide aperture Nb-Ti magnets for the LHC upgrade
/ Kirby, G. (CERN) ; Auchmann, B. (CERN) ; Bajko, M. (CERN) ; Charrondiere, M. (CERN) ; Bourcey, N. (CERN) ; Datskov, V.I. (CERN) ; Fessia, P. (CERN) ; Feuvrier, J. (CERN) ; Galbraith, P. (CERN) ; Tabares, A. Garcia (CERN) et al.
MQXC is a Nb-Ti quadrupole designed to meet the accelerator quality requirements needed for the phase-1 LHC upgrade, now superseded by the high luminosity upgrade foreseen in 2021. The 2-m-long model magnet was tested at room temperature and 1.9 K. [...]
arXiv:1401.3960.-
2013 - 8 p.
- Published in : , pp. 57-64
Fulltext: PDF; Published version from CERN: PDF; External link: Preprint
In : WAMSDO: Workshop on Accelerator Magnet Superconductors, Design and Optimization, pp.57-64
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