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Lessons learned from hardware failure during HL-LHC AUP cabling
/ Lee, Elizabeth (LBL, Berkeley) ; Baskys, Algirdas (CERN) ; Lin, Andy (LBL, Berkeley) ; Perez, Carlos (LBL, Berkeley) ; Buron, Elaine (LBL, Berkeley) ; Pong, Ian (LBL, Berkeley) ; Croteau, Jean-Francois (LBL, Berkeley) ; Naus, Michael (LBL, Berkeley) ; Lipton, Thomas (LBL, Berkeley)
The cabling facility at Lawrence Berkeley National Laboratory has experienced a heavy increase in workload during the US-HiLumi Accelerator Upgrade Project (AUP). Several critical components have experienced unexpected failure over the project’s lifetime for reasons at least partly attributable due to increased wear and tear on the hardware subsystems. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) WEPS80
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPS80
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2.
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Design, manufacturing and validation of the new quench heater discharge power supplies for the protection of superconducting magnets for the High-Luminosity LHC Project at CERN
/ Carrillo, David (CERN) ; Berberat, Raphael (CERN) ; Georgakakis, Spyridon (CERN) ; Guasch-Martinez, Josep (CERN) ; Lopez Cordoncillo, Denisse (CERN) ; de Nicolás Lumbreras, Enrique (CERN) ; Nowak, Edward (CERN) ; Papamichali, Maria (CERN) ; Pojer, Mirko (CERN) ; Rodriguez Mateos, Felix (CERN) et al.
The Quench Heater Discharge Power Supplies (HDS) are magnet protection devices installed in the Large Hadron Collider (LHC) that, upon detection of a magnet quench, release energy into strip heaters that are in thermal contact with the superconducting coils, inducing a resistive transition all along the coils. The new HDS design for protection of the High Luminosity LHC (HL-LHC) Inner Triplet magnets calls for a more advanced design with up-to-date components resulting in a high reliability of the HDS units. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) THPG52
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPG52
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3.
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Hardware Commissioning of the HL-LHC Inner Triplet String Facility at CERN: Individual System and Short Circuit Tests
/ Yammine, Samer (CERN) ; Antoine, Alain (CERN) ; Onufrena, Aleksandra (CERN) ; Perin, Antonio (CERN) ; Panev, Bozhidar Ivanov (CERN) ; Bozzini, Davide (CERN) ; Coulot, Emilien (CERN) ; Thiesen, Hugues (CERN) ; Zerlauth, Markus (CERN) ; Bajko, Marta (CERN) et al.
The goal of the High Luminosity-Large Hadron Collider (HL-LHC) Inner Triplet (IT) String test, is to validate the assembly and connection procedures and tools required for its construction, to assess the collective behavior of the superconducting magnet chain in conditions as close as possible to those of their operation in the HL-LHC and to provide a training opportunity for the equipment teams for their work in the LHC tunnel. The IT String includes the systems required for operation at nominal conditions, such as the cryogenics, powering and quench protection systems. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) THPS50
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPS50
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4.
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The mechanical behavior of the EIC beam screen during a magnet quench
/ Morrone, Marco (CERN) ; Garion, Cedric (CERN) ; Hetzel, Charles (Brookhaven Natl. Lab.) ; Chiggiato, Paolo (CERN)
As part of the Electron-Ion Collide (EIC) upgrade at Brookhaven National Laboratory (BNL), the development of new beam screens for the vacuum system is underway. The mechanical design of the beam screens received support from CERN, particularly in addressing the mechanical response during a magnet quench, i.e. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) TUPR59
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPR59
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5.
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Design, manufacturing and validation of the CLIQ units for the protection of superconducting magnets for the High-Luminosity LHC project at CERN
/ Carrillo, David (CERN) ; Berberat, Raphael (CERN) ; Favre, Mathieu (CERN) ; Georgakakis, Spyridon (CERN) ; Guasch-Martinez, Josep (CERN) ; Lopez Cordoncillo, Denisse (CERN) ; de Nicolás Lumbreras, Enrique (CERN) ; Nowak, Edward (CERN) ; Pojer, Mirko (CERN) ; Rodriguez Mateos, Felix (CERN) et al.
The novel Coupling-Loss-Induced-Quench (CLIQ) concept will be part of the quench protection system of the superconducting Inner Triplet magnets of the High Luminosity Large Hadron Collider (HL-LHC) upgrade at CERN. Several units of two distinct CLIQ prototype variants were produced to validate the CLIQ protection concept and define the system parameters for the required performance. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) THPG51
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPG51
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6.
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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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7.
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Superconducting magnets technology for a European heavy ion gantry
/ Prioli, Marco (LASA, Segrate) ; Santini, Carlo (LASA, Segrate) ; Barna, Daniel (Wigner RCP, Budapest) ; Gusvitskii, Todor (Rome U.) ; Perini, Diego (CERN) ; Bianchi, E (INFN, Genoa) ; Felcini, Enrico (CNAO, Milan) ; De Matteis, Ernesto (LASA, Segrate) ; Toral, Fernando (Madrid, CIEMAT) ; Levi, Filippo (INFN, Genoa) et al.
Various initiatives in Europe have been launched to study superconducting magnets for a rotatable gantry suitable to deliver up to 430 MeV/u carbon ions for hadron therapy. Different technologies and layouts are being considered: the baseline solution is developed within the EuroSIG collaboration and consists of a strongly curved cos-$\theta$ dipole based on the classical NbTi superconductor. [...]
2024 - 5 p.
- Published in : JACoW IPAC 2024 (2024) WEXN1
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEXN1
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8.
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Mechanical design of the 12 T superconducting dipole. An accelerator-fit, Nb₃Sn double aperture magnet
/ Masci, Marco (CERN) ; Perini, Diego (CERN) ; Baudin, Lucie (CERN)
In the context of the High Field Magnet programme, the 12 T Nb3Sn activity aims to design and manufacture a 2-meter-long, 12 T, cosθ, double aperture dipole. To reach magnetic fields higher than 10 T in accelerator magnets, brittle epoxy-impregnated Nb3Sn Rutherford cables are employed, which makes it difficult to predict the coil's mechanical limit and, in extenso, the magnet's performance. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) WEPS63
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPS63
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Lifetime studies of magnet protection systems for the Large Hadron Collider at CERN
/ de Nicolás Lumbreras, Enrique (CERN) ; Carrillo, David (CERN) ; Nowak, Edward (CERN) ; Pojer, Mirko (CERN) ; Nielsen, Thorbjørn (CERN)
The Quench Heater Discharge Power Supplies (HDS), Quench Discharge Local Protection Interface Module (DQLIM), Linear Redundant Power supplies (LPR), and Power Packs (LPUS) stand as critical systems, crucial for the protection of the Large Hadron Collider (LHC) superconducting magnets. This paper provides an in-depth exploration of comprehensive lifetime studies conducted on these systems. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) THPG50
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPG50
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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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