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HL-LHC magnet production: building a complex planning to identify bottlenecks
/ Fleury, Sarah (CERN) ; Todesco, Ezio (CERN) ; Barberan Marin, Maria (CERN) ; Bernardini, Marzia (CERN)
The High-Luminosity LHC project aims to enhance the integrated luminosity of the LHC machine by a factor of 10, by upgrading various components located in the LHC tunnel just before the collision points, with cutting-edge technologies. Among these innovations are the new superconducting magnets equipped with a combination of $Nb-Ti$ and $Nb_3Sn$. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) TUPS08
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPS08
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Lessons Learned From the First Long Shutdown of the Lhc and Its Injector Chain
/ Foraz, Katy (CERN) ; Barberan Marin, Maria (CERN) ; Bernardini, Marzia (CERN) ; Coupard, Julie (CERN) ; Gilbert, Nicolas (CERN) ; Hay, David (CERN) ; Mataguez, Simon (CERN) ; Mcfarlane, David (CERN) ; Vergara Fernandez, Estrella (CERN)
The First Long Shutdown (LS1) of the LHC and its Injector chain, which started in February 2013, was completed by the first quarter 2015. A huge number of activities have been performed; this paper reviews the process of the coordination of LS1 from the preparatory phase to the testing phase. [...]
CERN-ACC-2015-281.-
2015 - 3 p.
- Published in : (2015) , pp. TUPTY023
Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.TUPTY023
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Integration, Configuration and Coordination: from Project to Reality, at CERN
/ Barberan Marin, Maria (CERN) ; Bartolome-Jimenez, Sonia (CERN) ; Bernardini, Marzia (CERN) ; Birtwistle, Thomas (CERN) ; Chemli, Samy (CERN) ; Corso, Jean-Pierre (CERN) ; Coupard, Julie (CERN) ; Foraz, Katy (CERN) ; Grillot, Serge (CERN) ; Muttoni, Yvon (CERN) et al.
The rigorous process in place at CERN to approve and follow-up the implementation of any modification of the LHC machine and its Injectors is presented in this paper. Our methodology implies the support of three teams, in charge of the configuration management, the scheduling and safety coordination, and the 3D integration studies. [...]
CERN-ACC-2016-267.-
2016 - 3 p.
- Published in : 10.18429/JACoW-IPAC2016-TUPMW003
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.TUPMW003
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5.
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Processes and Tools to Manage CERN Programmed Stops Applied to the Second Long Shutdown of the Accelerator Complex
/ Vergara Fernandez, Estrella (CERN) ; Ansel, Antoine (CERN) ; Barberan Marin, Maria (CERN) ; Bernardini, Marzia (CERN) ; Chemli, Samy (CERN) ; Coupard, Julie (CERN) ; Foraz, Katy (CERN) ; Hay, David (CERN) ; Jimenez, José (CERN) ; Mcfarlane, David (CERN) et al.
The preparation and follow-up of CERN accelerator complex programmed stops require clear processes and methodologies. The LHC and its Injectors were stopped in December 2018, to maintain, consolidate and upgrade the different equipment of the accelerator chain. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2048-2051
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2048-2051
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Next Generation of Quench Detection Systems for the High-Luminosity Upgrade of the LHC
/ Denz, Reiner (CERN) ; de Matteis, Ernesto (CERN) ; Siemko, Andrzej (CERN) ; Steckert, Jens (CERN)
Abstract:
The foreseen upgrade of the large hadron collider (LHC) for high-luminosity operation will incorporate a new generation of high field superconducting magnets. In particular, the current inner triplet magnets in LHC experiments A Toroidal LHC Apparatus (ATLAS) and Compact Muon Solenoid (CMS) in points 1 and 5 will be replaced by novel large aperture Nb3 Sn quadrupole magnets. [...]
2017
- Published in : IEEE Trans. Appl. Supercond. 27 (2017) 4700204
In : Applied Superconductivity Conference, Denver, CO, USA, 4 - 9 Sep 2016, pp.4700204
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7.
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Sorting strategies for the new superconducting magnets for the CERN HL-LHC
/ Pugnat, Thomas (CERN) ; Wegscheider, Andreas (CERN) ; Todesco, Ezio (CERN) ; Giovannozzi, Massimo (CERN) ; Tomas, Rogelio (CERN)
In a circular collider, precise control of the linear optics in the vicinity of the interaction points plays a crucial role in ensuring optimal operational performance and satisfying the machine protection constraints. Superconducting magnets are affected by unavoidable field errors that impact machine performance, and mitigation strategies are usually put in place to improve the situation. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) THPC16
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPC16
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Impact of flux jumps on high-precision powering of Nb$_3$Sn superconducting magnets
/ Martino, Michele (CERN) ; Arpaia, Pasquale (CERN ; U. Naples (main)) ; Ierardi, Stefano (CERN ; U. Naples (main))
Nb$_3$Sn superconducting magnets represent a technology enabler for future high-energy particle accelerators. A possible impediment, though, comes from flux jumps that, so far, could not be avoided by design unlike for NbTi technology. [...]
CERN-ACC-2019-187.-
2019 - 7 p.
- Published in : (2019) , pp. TUPMP040
- Published in : Eur. Phys. J., C: 1350 (2019) , pp. 012180
Fulltext: PDF; Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.TUPMP040
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10.
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Change of Critical Current Density in Nb-Ti and Nb$_{3}$Sn Strands After Millisecond Heating
/ Raginel, Vivien (CERN) ; Kleiven, David (Norwegian U. Sci. Tech.) ; Kulesz, Karolina (CERN) ; Mentink, Matthijs (CERN) ; Schmidt, Ruediger (CERN) ; Verweij, Arjan (CERN) ; Wollmann, Daniel (CERN)
The damage mechanisms and limits of superconducting magnet components due to direct beam impact are not well understood. The energy deposition from beam losses can cause significant temperature rise and mechanical stress in the magnet coils, which can lead to a degradation of the insulation strength and critical current of the superconductor. [...]
CERN-ACC-2017-171.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-WEPVA111
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEPVA111
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