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HL-LHC / LIU Joint Workshop

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30-7-018 (CERN)

30-7-018

CERN
Description
Progressing towards an agreed set of 450 GeV beam parameters for High Luminosity operation in LHC after LS2 & LS3. Morning sessions: talks and questions. Afternoon session: open discussion on a few pre-defined questions, led by animators.
Participants
46 View full list
    • 1
      Welcome 30-7-018

      30-7-018

      CERN
      Speaker: Steve Myers (CERN)
    • 2
      Summary and outcome of the 1st LIU-HL-LHC Brainstorming meeting 30-7-018

      30-7-018

      CERN
      Speaker: Mike Lamont (CERN)
      Slides
    • HL-LHC Talks 30-7-018

      30-7-018

      CERN
      • 3
        Transverse emittance blow-up and beam loss between injection and collision – 20+10 minutes
        o Taking into account experience with beam until end of 2011 o For 25 and 50 ns bunch spacing
        Speaker: Verena Kain (CERN)
        Slides
      • 4
        Update of required beam characteristics at injection energy in LHC – 20+10 minutes
        o Taking into account experience with beam until end of 2011 o For 25 and 50 ns bunch spacing o Known “hard” and “soft” limits and resulting area of beam characteristics
        Speaker: Oliver Bruning (CERN)
        Slides
      • 5
        Micro-batch filling scheme for pacman cancellation – 10+5 minutes
        Speaker: Stephane Fartoukh (CERN)
        Slides
      • 6
        New ideas (e.g. pile-up levelling versus luminosity levelling schemes: potential gains and losses in performance) – 10+5 minutes
        Speaker: Dr Frank Zimmermann (CERN)
        Slides
    • 10:55
      Coffee break 30-7-018

      30-7-018

      CERN
    • LIU talks 30-7-018

      30-7-018

      CERN
      • 7
        Analysis of performance progress in the injectors in 2011 – 20+10 minutes
        o Double PSB batch in the PS o SPS improvement because of scrubbing? o What was done in MDs o Instrumentation-related issues
        Speaker: Giovanni Rumolo (CERN)
        Slides
      • 8
        Update of achievable beam characteristics at injection in LHC – 20+10 minutes
        o Taking into account experience with beam until end of 2011 o For 25 and 50 ns bunch spacing o Known “hard” and “soft” limits o Suggesting area of equivalent beam characteristics.
        Speaker: Dr Brennan Goddard (CERN)
        Slides
      • 9
        About beam characteristics and LHC luminosity … – 20+10 minutes
        - Luminosity and beam quality factor - Status - How space charge bottlenecks are addressed - Could we do better? - Path to the specifications of the LIU goals
        Speaker: Roland Garoby (CERN)
        Slides
    • 12:40
      Lunch (invited participants only) La Brasserie (restaurant no.2)

      La Brasserie (restaurant no.2)

      CERN
    • Questions with one “moderator” / question, and a 1 slide introduction for each project 30-7-018

      30-7-018

      CERN
      • 10
        Pros-cons of 25 ns vs 50 ns, animated by J-M. Jimenez and E. Metral.
        Slides
      • 11
        Overlapping LIU accessible beam parameters (areas) with LHC beam parameters regions (bands), animated by S. Gilardoni and G. Arduini.
        Slides
      • 16:00
        Coffee break
      • 12
        List of questions to be answered by the end of 2012 / required MDs, animated by E. Shaposhnikova and R. Assmann.
        Slides
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