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The HL-LHC Project Gets Ready for Its Deployment
/ Zerlauth, Markus (CERN) ; Brüning, Oliver (CERN) ; Di Girolamo, Beniamino (CERN) ; Fessia, Paolo (CERN) ; Gaignant, Christelle (CERN) ; Garcia Gavela, Hector (CERN) ; Maclean, Ewen (CERN) ; Modena, Michele (CERN) ; Otto, Thomas (CERN) ; Tavian, Laurent (CERN) et al.
Following the successful completion of the second long shutdown (LS2), the Large Hadron Collider (LHC) is preparing for its final operational run before the majority of the High Luminosity Upgrade (HL-LHC) will be installed during the third Long Shutdown starting in 2026. The HL-LHC upgrade will enable a further tenfold increase in integrated luminosity delivered to the ATLAS and CMS experiments, starting by an upgrade of the machine protection, collimation and shielding systems in LS2, and followed by the deployment of novel key technologies, including Nb₃Sn based insertion region magnets, cold powering by MgB₂ superconducting links and integration of Nb crab-cavities to compensate the effects of a larger crossing angle. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 50-53
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.50-53
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New Generation CERN LHC Injection Dump - Assembly and Installation (TDIS)
/ Carbajo Perez, David (CERN) ; Berthomé, Emmanuel (CERN) ; Bertone, Caterina (CERN) ; Biancacci, Nicolo (CERN) ; Bracco, Chiara (CERN) ; Bregliozzi, Giuseppe (CERN) ; Bulat, Bartosz (CERN) ; Cadiou, Cyril (CERN) ; Calviani, Marco (CERN) ; Cattenoz, Gregory (CERN) et al.
During CERN’s LS2, several upgrades were performed to beam intercepting devices in the framework of the HL-LHC Project. Upgraded equipment includes two internal beam dumps (TDIS) intended for machine protection located at the injection points from the SPS to the LHC. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 3548-3551
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3548-3551
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Experimental Setup to Characterize the Radiation Hardness of Cryogenic Bypass Diodes for the HL-LHC Inner Triplet Circuits
/ Will, Andreas (CERN ; KIT, Karlsruhe) ; Bernhard, Axel (KIT, Karlsruhe) ; D'Angelo, Giorgio (CERN) ; Denz, Reiner (CERN) ; Favre, Mathieu (CERN) ; Hagedorn, Dietrich (CERN) ; Kirby, Glyn (CERN) ; Kistrup, Lucas (Unlisted, DK) ; Koettig, Torsten (CERN) ; Monteuuis, Arnaud (CERN) et al.
For the high luminosity upgrade of the Large Hadron Collider (LHC), it is planned to replace the existing triplet quadrupole magnets with Nb₃Sn quadrupole magnets, which provide a comparable integrated field gradient with a significantly increased aperture. These magnets will be powered through a novel superconducting link based on MgB₂ cables. [...]
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-WEPMG006
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.WEPMG006
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Operational Scenario of First High Luminosity LHC Run
/ Tomás García, Rogelio (CERN) ; Arduini, Gianluigi (CERN) ; Baudrenghien, Philippe (CERN) ; Bruce, Roderik (CERN) ; Brüning, Oliver (CERN) ; Buffat, Xavier (CERN) ; Calaga, Rama (CERN) ; Cerutti, Francesco (CERN) ; De Maria, Riccardo (CERN) ; Dilly, Joschua (CERN) et al.
A new scenario for the first operational run of the HL-LHC era (Run 4) has been recently developed to accommodate a period of performance ramp-up to achieve an annual integrated luminosity close to the nominal HL-LHC design. The operational scenario in terms of beam parameters and machine settings, as well as the different phases, are described here along with the impact of potential delays on key hardware components..
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 1846-1849
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1846-1849
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Project management structures, processes, and tools for the HL-LHC project
/ Vandoni, Giovanna (CERN) ; Brüning, Oliver (CERN) ; Di Girolamo, Beniamino (CERN) ; Fessia, Paolo (CERN) ; Garcia Gavela, Hector (CERN) ; Jensen, Lars (CERN) ; Modena, Michele (CERN) ; Noels, Cecile (CERN) ; Tavian, Laurent (CERN) ; Zerlauth, Markus (CERN)
At its restart after a major shutdown in 2029, the LHC will see its interaction regions upgraded by the installation of the HL-LHC equipment, with new Nb3Sn triplets and cold powering system, crab-cavities for crossing angle compensation and luminosity levelling, an upgraded collimation system, and fully remote alignment for the final focusing region. In the following operational runs, the LHC will aim at a tenfold increase of the integrated luminosity compared to the original design. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) TUPA154
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPA154
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Improved Protection of the Warm Magnets of the LHC Betatron Cleaning Insertion
/ Bahamonde Castro, Cristina (CERN) ; Cerutti, Francesco (CERN) ; Fessia, Paolo (CERN) ; Lechner, Anton (CERN) ; Mereghetti, Alessio (CERN) ; Mirarchi, Daniele (CERN) ; Redaelli, Stefano (CERN) ; Skordis, Eleftherios (U. Liverpool (main) ; CERN)
After the High Luminosity (HL) upgrade in 2024-2026, the LHC is anticipated to increase its integrated luminosity by a factor of 10 beyond its original design value of 300 fb-1. In preparation for this, several improvements to the equipment will already be implemented during the next Long Shutdown (LS2) starting in 2019. [...]
CERN-ACC-2017-120.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-MOPAB004
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPAB004
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Local Optics Corrections in the HL-LHC IR
/ Coello de Portugal, Jaime Maria (CERN ; Barcelona, Polytechnic U.) ; Carlier, Felix (CERN) ; Garcia-Tabares, Ana (CERN) ; Langner, Andy (CERN) ; Maclean, Ewen (CERN) ; Malina, Lukas (CERN) ; Persson, Tobias (CERN) ; Skowroński, Piotr (CERN) ; Tomás, Rogelio (CERN)
For the high luminosity upgrade of the LHC optics correction in the interaction regions is expected to be challenged by the very low β^{*} and the sizable expected quadrupolar errors in the triplet. This paper addresses the performance and limitations of the segment-by-segment technique to correct quadrupolar and skew quadrupolar errors in the HL-LHC IR via computer simulations. [...]
CERN-ACC-2016-176.-
2016 - 4 p.
- Published in : 10.18429/JACoW-IPAC2016-THPMR040
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPMR040
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Optics Measurements and Correction Plans for the HL-LHC
/ Persson, Tobias (CERN) ; Buffat, Xavier (CERN) ; Carlier, Felix (CERN) ; Coello de Portugal, Jaime Maria (PSI, Villigen) ; De Maria, Riccardo (CERN) ; Dilly, Joschua (CERN) ; Fol, Elena (CERN) ; Gamba, Davide (CERN) ; Garcia Morales, Hector (CERN) ; García-Tabarés Valdivieso, Ana (CERN) et al.
The High Luminosity LHC (HL-LHC) will require stringent optics correction to operate safely and deliver the design luminosity to the experiments. In order to achieve this, several new methods for optics correction have been developed. [...]
2021 - 4 p.
- Published in : 10.18429/JACoW-IPAC2021-WEPAB026
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, Br, 24 - 28 May 2021, pp.2656-2659
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