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Advancements in Magnet Technology for the High Luminosity LHC Workshop - June 2014

The HL-LHC project workshop held at CERN from June 11-13, 2014, focused on best practices and technical advancements in accelerator technology. Key highlights included the evolution of magnet designs leading to the High Luminosity LHC, with discussions on the latest innovations in dipoles and quadrupoles. The workshop addressed the challenges of increasing luminosity while ensuring technical limits, QA improvements, and effective collaboration among international teams. Presentations featured updates on R&D progress, hardware prototypes, and project implementation plans for 2023-2025.

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Advancements in Magnet Technology for the High Luminosity LHC Workshop - June 2014

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  1. The HL-LHC Project Lucio Rossi - CERN Best Practice Workshop CERN 11-13June 2014

  2. 0.75 1034 cm-2s-1 50 ns bunchhigh pile up 40 1.5 1034 cm-2s-1 25 ns bunchpile up 40 1.7-2.2 1034 cm-2s-1 25 ns bunch pile up 60 Technicallimits (experiments, too) like : Withoutnegletcting actions in LS2 !! L. Rossi @ Best Practice WRKS 11 June 2014

  3. Magnet the progress • LHC dipolesfeatures 8.3 T in 56 mm (designed for 9.3 peakfield) • LHC IT Quads features 205 T/m in 70 mm with 8 T peak field • HL-LHC • 11 T dipole (designed for 12.3 T peakfield, 60 mm) • New IT Quads features 140 T/m in 150 mm > 12 T operationalfield, designed for 13.5 T). L. Rossi @ Best Practice WRKS 11 June 2014

  4. LHC low-β quads: steps in magnet technology from LHC toward HL-LHC LHC (USA & JP, 5-6 m) 70 mm, Bpeak 8 T 1992-2005 LARP TQS & LQ (4m) 90 mm, Bpeak 11 T 2004-2010 New structure based on bladders and keys (LBNL, LARP) LARP & CERN MQXF 150 mm, Bpeak 12.1 T 2013-2020 LARP HQ 120 mm, Bpeak 12 T 2008-2014 L. Rossi @ Best Practice WRKS 11 June 2014

  5. CrabCavities for fastbeamrotation Presentbaseline: 3 cavity /cyomodule 4 cavity/cryomodisunderstudy for CrabKissing TEST in SPS underpreparation (A. MacPherson) L. Rossi @ Best Practice WRKS 11 June 2014

  6. Lowimpedencecollimators(LS2 & LS3) New material: MoGr S. Redaelli A. Bertarelli L. Rossi @ Best Practice WRKS 11 June 2014

  7. Halo control (hollow e-lens) L. Rossi @ Best Practice WRKS 11 June 2014

  8. DOE Nb3Sn R&D 2000 Collaboration: the long way FP6 CARE Nb3Sn LARP generic 2005 The HL-LHC projectformallystarted in 2010; howeveritis the focal point of 20 years of convergingInternational Collaboration FP7sLHC PP (INJ) LARP HiField quads FP7 EuCARD HiFieldDip 2010 CERN-KEK R&D sLHC INJ implem. LARP Demo FP7 DS Hi-Lumi LHC 2015 M CERN-KEK D1 design today Injector upgrade Construction HL-LHC commissioning 2023 L. Rossi @ Best Practice WRKS 11 June 2014

  9. High Luminosity LHC Participants L. Rossi @ Best Practice WRKS 11 June 2014

  10. In-kind contribution and Collaboration for HW design and prototypes ATLAS CMS Q1-Q3 : R&D, Design, Prototypes and in-kindUSA D1 : R&D, Design, Prototypes and in-kindJP MCBX : Design and Prototype ES HO Correctors: Design and Prototypes IT Q4 : Design and Prototype FR CC : R&D, Design and in-kindUSA CC : R&D and Design UK L. Rossi @ Best Practice WRKS 11 June 2014

  11. Implementation plan 2023-25 All WP active, from diagnostics to Machine Protection; Integrationstartedwithvigour as well as QA (workshop today!) Cryo, SC links, Collimators, Diagnostics, etc. starts in LS2 (2018) Proof of main hardware by 2016; Prototypes by 2017 Start construction 2017/18 from IT, CC, othermain hardware IT String test (integration) in 2020; Main Installation 2023-25 Though but – based on LHC experience – feasible LHC has bene a greatexperience… But weshould, do better. What has been waived in LHC, in term of QA, cannotbewaivedtoday. Interchangeability of info, files, etc, must beimproved. This time we design together! Time to make a complete plan: HL Cost & Schedule review to beheld end 2013-begining of 2014. L. Rossi @ Best Practice WRKS 11 June 2014

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