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    Meeting #30

    → Europe/Zurich
    30/2-005 (CERN)

    30/2-005

    CERN

    15
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    Description

    https://edms.cern.ch/document/3518195/1

      • 14:30 → 15:00
        Coordination 30m
        • News & WP update 5m
          Speakers: Cedric Garion (CERN), Marco Morrone (CERN)
        • Action list & deliverables 15m
          Speaker: Marco Morrone (CERN)
        • News from different committees 10m
          Speakers: Jerome Gilles Chaure (CERN), Marco Morrone (CERN), Marton Ady (CERN)
      • 15:00 → 16:00
        Technical topics 1h
        • Interlock strategy for SR: brainstorming 20m
          Speaker: Marton Ady (CERN)
        • Update on impedance simulations 20m
          Speaker: Patrick Krkotic
        • Brainstorming on the vacuum implications of a longer girder 20m

          The current configuration of the SRA positioning on a longer girder is not favourable for us. We will increase by 0.5 kW the power on the last SRA and, most importantly, we reduce the misalignment tolerance of the SRAs to 1 mm max 2 mm (see Gabriel study @ VTCM #29).

          The plan B might be:
          - add an SRA in the HV large aperture corrector (big implications for MSC that needs to do a rad hard magnet);
          - move the SRA closer to the beam (impedance load and beam instabilities to account for)
          - Assess whether the HV corrector is needed for all girders (since not all quads/sexts have the same length, see Patrick's feedback after optics meeting).