LHC Collimation Review 2013

Europe/Zurich
30-7-018 - Kjell Johnsen Auditorium (CERN)

30-7-018 - Kjell Johnsen Auditorium

CERN

190
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Mike Seidel (PSI)
Description
Introduction:
In the frame of the LHC upgrades towards the High Luminosity LHC (HL-LHC), the improvement of the LHC collimation system is a critical aspect. The review has the main scope of assessing the needs of new collimators in the LHC cold dispersion suppressors for the operation beyond LS2.

Charge of the review panel:
The committee should look into the various aspects of the presented upgrade baseline and advise in particular on the need to pursue R&D on 11T dipoles for a possible installation in the LHC for LS2.
  • Are the assumptions for performance reach estimates appropriate and adequately addressed?
  • Is the present upgrade strategy appropriate in view of being able to take a decision in 2015?
  • Is there any aspect that has been overlooked?
A final report should be produced and delivered to Steve Myers and Stefano Redaelli.

Review panel:
Mike Seidel (PSI, Chair), Giorgio Apollinari (FNAL), Wolfram Fischer (BNL), Marzio Nessi (ATLAS), Rudiger Schmidt (CERN/ESS), Carsten Omet (GSI).
Poster
Report of the Review Committee
Review summary
Participants
  • Alessandro Dallocchio
  • Alessio Mereghetti
  • Alexander Ryazanov
  • Anton Lechner
  • Arjan Verweij
  • Aurelien Marsili
  • Belen Salvachua
  • Beniamino Di Girolamo
  • Bernhard Holzer
  • Carsten Omet
  • Daniel Wollmann
  • Daniele Mirarchi
  • Elena Quaranta
  • Federico Carra
  • Francesco Cerutti
  • Genevieve Eleanor Steele
  • Gianluca Valentino
  • Helmut Burkhardt
  • Jan Uythoven
  • John Jowett
  • Knud Dahlerup-Petersen
  • Laurie Nevay
  • Lucio Rossi
  • Luigi Salvatore Esposito
  • Luisella Lari
  • Marek Gasior
  • Maria Chamizo Llatas
  • Marija Cauchi
  • Mariusz Sapinski
  • Markus Zerlauth
  • Massimo Giovannozzi
  • Michaela Schaumann
  • Mike Lamont
  • Nicola Mariani
  • Pablo Garcia Ortega
  • Paolo Fessia
  • Ramon Folch
  • Regina Kwee
  • Reine Versteegen
  • Riccardo De Maria
  • Roberto Losito
  • Rudiger Schmidt
  • Stephen Gibson
  • Sune Jakobsen
  • Sylvain Weisz
  • Tom Markiewicz
  • Valentina Previtali
  • Vera Chetvertkova
  • Vince Moens
  • Volker Mertens
  • Werner Riegler
    • 08:30 10:00
      Introduction to present collimation system and scope of the review 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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      • 08:30
        The HL-LHC timeline (15'+5') 20m
        Speaker: Lucio Rossi (CERN)
        Slides
      • 08:50
        Introduction to dispersion suppressor collimation (30'+10') 40m
        Speaker: Stefano Redaelli (CERN)
        Slides
      • 09:30
        Present LHC collimator (25'+5') 30m
        Speaker: Roberto Losito (CERN)
        Slides
    • 10:00 10:20
      Coffee Break 20m 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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    • 10:20 12:05
      Estimated performance reach of present LHC collimation for 7 TeV 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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      • 10:20
        Cleaning performance (15'+10') 25m
        Speaker: Belen Maria Salvachua Ferrando (CERN)
        Slides
      • 10:45
        Setting limits and beta* reach (20'+10') 30m
        Speaker: Roderik Bruce (CERN)
        Slides
      • 11:15
        Impedance (20'+10') 30m
        Speaker: Nicolas Frank Mounet (Ecole Polytechnique Federale de Lausanne (CH))
        Slides
      • 11:45
        Collimation cleaning with ATS optics for HL-LHC (15'+5') 20m
        Speaker: Aurelien Marsili (CERN)
        Slides
    • 12:05 14:00
      Lunch 1h 55m 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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    • 14:00 15:30
      Estimated performance reach of present LHC collimation for 7 TeV 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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      • 14:00
        DS collimation for heavy-ion operation (20'+10') 30m
        Speaker: John Jowett (CERN)
      • 14:30
        Heat load scenarios and protection levels for ions (20') 20m
        Speaker: Genevieve Eleanor Steele (CERN)
        Slides
      • 14:50
        Energy deposition simulations for quench tests (15'+5'') 20m
        Speaker: Eleftherios Skordis
        Slides
      • 15:10
        Quench limits: extrapolation of quench tests to 7 TeV (15'+5') 20m
        Speaker: Arjan Verweij (CERN)
        Slides
    • 15:30 15:50
      Coffee Break 20m 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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    • 15:50 16:10
      Estimated performance reach of present LHC collimation for 7 TeV 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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      • 15:50
        Overview of quench limits for faster time ranges (15'+5') 20m
        Speaker: Mariusz Sapinski (CERN)
        Slides
    • 16:10 16:30
      Status DS collimation (in collision points and cleaning insertions) 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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      • 16:10
        What do we need to decide now to have Nb3Sn dipoles in LS2? (15'+5') 20m
        Speaker: Luca Bottura (CERN)
        Slides
    • 16:30 18:00
      Closed session for review 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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    • 09:00 10:20
      Status DS collimation (in collision points and cleaning insertions) 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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      • 09:00
        Status of 11T dipole program (20'+5') 25m
        Speaker: Mikko Karppinen (CERN)
        Slides
      • 09:25
        Integration options for collimators in the DS zones (20'+10') 30m
        Speaker: Vittorio Parma (CERN)
        Slides
      • 09:55
        Status of the TCLD collimator design (20'+5') 25m
        Speaker: Alessandro Bertarelli (CERN)
        Slides
    • 10:20 10:40
      Coffee break 20m 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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    • 10:40 11:15
      Collimation plans for the HL era (25'+10') 35m 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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      Speaker: Stefano Redaelli (CERN)
      Slides
    • 11:15 13:00
      Closed session for review 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
      Show room on map
    • 13:00 14:00
      Lunch 1h 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
      Show room on map
    • 14:00 15:00
      Closed session for review 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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    • 15:00 15:45
      Summary and review recommendations 30-7-018 - Kjell Johnsen Auditorium

      30-7-018 - Kjell Johnsen Auditorium

      CERN

      190
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      Convener: Mike Seidel (PSI)
      slides