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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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2.
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The Inner Triplet String Facility for HL-LHC: Design and Planning
/ Bajko, Marta (CERN) ; Bertolasi, Stefano (CERN) ; Bertone, Caterina (CERN) ; Blanchard, Sebastien (CERN) ; Bozzini, Davide (CERN) ; Brüning, Oliver (CERN) ; Cruikshank, Paul (CERN) ; De Luca, Davide (CERN) ; Dos Santos, Nuno (CERN) ; Dragoni, Francesco (CERN) et al.
In the framework of the HL-LHC project, full-scale integration and operational tests of the superconducting magnet chain, from the inner triplet quadrupoles up to the first separation/recombination dipole, are planned in conditions as similar as possible to the final set-up in the LHC tunnel. The IT String includes all of the required systems for operation at nominal conditions, such as vacuum, cryogenics, warm and cold powering equipment, and protection systems. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 3592-3595
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3592-3595
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4.
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Chapter 9: Cryogenics for the HL-LHC
/ Claudet, Serge (CERN) ; Ferlin, Gerard (CERN) ; Monneret, Emmanuel (CERN) ; Perin, Antonio (CERN) ; Pirotte, Olivier (CERN) ; Sisti, M (CERN) ; Van Weelderen, Rob (CERN)
The upgrade of the cryogenics for the HL-LHC will consist of the following:
- The design and installation of two new cryogenic plants at P1 and P5 for high luminosity insertions. This upgrade will be based on a new sectorization scheme aimed at separating the cooling of the magnets in these insertion regions from the arc magnets and considering the newt feedboxes and superconducting links located in underground infrastructures.
- The design and installation of a new cryogenic distribution lines (QXL) at P1 and P5 in the LHC tunnel and in a new underground service galleries.
- The upgrade of the existing cryogenic plant (QSRA and QURA) cooling the LHC sector 3-4 located at P4.
- The cryogenic design support for superconducting devices, such as magnets, crab cavities, superconducting links, and the hollow electron lenses.
Some other options such as new cryogenic circuits at P7 for the HTS links and displaced current feedboxes or a new cryoplant in P4 have been discarded..
2020 - 10 p.
- Published in : 10.23731/CYRM-2020-0010.189
Fulltext: PDF;
In : High-Luminosity Large Hadron Collider (HL-LHC): Technical design report, pp.189-198
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5.
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Cryogenic Considerations for Cooling Superconducting Links and Application to the High Luminosity Upgrade of the Large Hadron Collider (LHC)
/ Berkowitz Zamora, Daniel (CERN) ; Claudet, Serge (CERN) ; Perin, Antonio (CERN)
Powering superconducting (SC) magnets in particle accelerators remotely through SC links allow to install the power supplies, the current leads, and the ancillary equipment away from the limited space, high radiation areas next to the magnets. Accelerator facilities with SC magnets at 4.5 K always need a significant cryogenic infrastructure; integrating the SC links with the cryogenic system requires a variety of considerations besides the thermal performance of the link's cryostat. [...]
2018 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 28 (2018) 4801605
In : 13th European Conference on Applied Superconductivity, ICCG, Geneva, Switzerland, 17 - 21 Sep 2017, pp.4801605
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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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A Statistical Analysis of Electrical Faults in the LHC Superconducting Magnets and Circuits
/ Bottura, Luca (CERN) ; Tock, Jean-Philippe (CERN) ; Auchmann, Bernard (CERN) ; Bednarek, Mateusz (CERN) ; Calcoen, Daniel (CERN) ; Charifoulline, Zinour (CERN) ; Coelingh, Gert-Jan (CERN) ; D'Angelo, Giorgio (CERN) ; Hagen, Per (CERN) ; Le Naour, Sandrine (CERN) et al.
The large hadron collider (LHC) at CERN has been operating and generating physics experimental data since September 2008, and following its first long shut down, it has entered a second, 4-year-long physics run. It is to date the largest superconducting installation ever built, counting over 9000 magnets along its 27-km long circumference. [...]
2017 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 28 (2017) 4000505
In : 25th International Conference on Magnet Technology, Amsterdam, The Netherlands, 27 Aug - 1 Sep 2017, pp.4000505
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Welding and Quality Control for the Consolidation of the LHC Superconducting Magnets and Circuits
/ Atieh, Said (CERN) ; Bernardini, Marzia (CERN) ; Bertinelli, Francesco (CERN) ; Cruikshank, Paul (CERN) ; Dalin, Jean-Michel (CERN) ; Favre, Gilles (CERN) ; Kain, Verena (CERN) ; Lombard, Didier (CERN) ; Perin, Antonio (CERN) ; Pojer, Mirko (CERN) et al.
The first LHC long shutdown was driven by the need to consolidate the 13 kA splices between the superconducting magnets to safely attain its center of mass design energy of 14 TeV. Access to the splices requires the opening of welded sleeves by machining. [...]
2014 - 3 p.
- Published in : , pp. WEPRI093
Fulltext: PDF; External link: Published version from JACoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.WEPRI093
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