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Special Joint HiLumi WP2/WP5 Meeting

Europe/Zurich
Description

HiLumi LHC Work Package 2 meeting

Chair: Rogelio Tomás, Stefano Redaelli

Minutes: Riccardo De Maria

Videoconference
HiLumi WP2 Meeting Room
Zoom Meeting ID
67218398114
Host
Hannes Bartosik
Useful links
Join via phone
Zoom URL
    • 09:00 09:10
      General information 10m
      Speakers: Rogelio Tomas Garcia (CERN), Stefano Redaelli (CERN)
    • 09:20 09:40
      News (Outcomes of the Chamonix Workshop, ...) 20m

      For WP2 follow the link below. For WP5 points are given as:
      - Continue follow up of beam lifetime measurements at the LHC, with BI (collimator scans), and beam loss analysis for Run 4 without HELs. Including characterization of tails at injection.
      - Need to converge on a Run 4 commissioning plan, consistent across WPs.
      - Various follow ups for the MD requests. In particular, several important HL-LHC topics: B1 quench test (verification of collimation performance); crystal tests tests to be carried out in commissioning for the new H devices; new IR7 optics for improved cleaning & better impedance; impedance measurements.
      - Deployment of crystal collimation for the ion run with the fully-upgraded system
      - Anything to follow up for the LHCb upgrade (lead by Matteo)
      - Large set of follow up studies for the new optics with inverted triplet polarity: aperture, collimation, …
      - Follow up CC beam test results at the SPS and possibly contribute
      -- No HL-related
      - To be finalised Feb./Mar.: ion beam energy for Run 3
      - Ion commissioning: monitor overall progress in the injectors and beam quality. LHC commissioning time too short!
      - Follow up setup time for ion beams in the SPS: quality of slip stacking with nominal schemes (more bunches); length of cycle vs commissioning vs dedicated filling.
      - LHC TCL6 settings: in IP1, trade off between FASER (data quality) and AFP (radiation issue).
      - LPC request to use crystal collimation for 2023 TOTEM runs, high b*
      - Beam losses and activation of TDIS at LHC injection
      - New validation strategy with high non linearities in the LHC.
      - Can we improve the commissioning time at the LHC? Loss maps etc.

      Speakers: Rogelio Tomas Garcia (CERN), Stefano Redaelli (CERN)
      doc
    • 09:50 10:10
      Descoping of 60A PC and related noise issue 20m
      Speakers: Dr Michele Martino (CERN), Miguel Cerqueira Bastos (CERN)
    • 10:20 10:25
      AOB 5m