HL-LHC BGI meeting - DIC and DIF followup

Wednesday 31 Jan 2024, 15:30 → 16:30 Europe/Zurich

Gunn Khatri (CERN), James Storey (CERN)

DIC - Demand installation de cable, DIF - demand de installation de fiber

Present:

Mark, Gunn, Wilfried and Miguel Baeza

Cables, fibers and racks:

• According to James, all the cable/fiber installation requests (DIC/DIF) for LS3, must be made before May 2024, this is urgent (Gunn takes care of it)
• For DIC, Gunn contacted Gael Girardot, got reply and will follow up (also copy Ioanna Ioannidi, she takes care of most work with Gael)
• Miguel suggested to setup a meeting with Gael and Ioanna, invite him as well.
• For DIF, Gunn will contact Jorge Rodriguez (jorge.rodriguez.fernandez@cern.ch) and Jeremy Blanc
• No DIR needed, during last visit to LHC Point4, we already identified which racks we will use (confirmed with SY-BI group):

  @UA43 

  • BY01 ( https://layout.cern.ch/elements?navigator=CW&id=545106) -> will be used for BGI-Horizontal on B1 ( prototype for YETS 24/25 )
  • BY02 ( https://layout.cern.ch/elements?navigator=CW&id=545105) -> will be used for BGI-Vertical on B1

   

  @UA47

  • BY16 ( https://layout.cern.ch/elements?navigator=CW&id=13720249) -> will be used for BGI-Horizontal on B2
  • BY17 ( https://layout.cern.ch/elements?navigator=CW&id=13720250) -> will be used for BGI-Vertical on B2
• EN-EL group during LS3 will be very busy with LHC point 1 and point 5 (point 4 is less critical, have a lot more space for cable/racks)
• Mark: can we have triax cables ? How much more expensive would they be compared to standard coaxial ? Miguel suggested we talk to EN-EL

Cooling water:

• Cooling water needed for 10W dissipated heat load (seems low but necessary for removing heat from vacuum side)
• Miguel will find out who is responsible for cooling water in P4 and get back to us

Vacuum chamber layout:

• The vacuum chamber depends on the magnet, we are doing conceptual design study, hopefully get back by end of March with decision on both the magnet and vacuum chamber
• Talk to Eric Page if questions regarding vacuum

Planning and intergration:

• The EDMS doc for HL-LHC BGI integration is constantly updated so make sure to have latest version: 
  https://edms.cern.ch/document/2932261/0.2
• HL-LHC status integration update and project timeline, see: https://indico.cern.ch/event/1348544/

15:30 → 16:00 zoom chat

• chat to followup on BGI installation plan and preparation
• services (cooling water, vacuum integration, rack, cable/fiber installation)

Speakers: Gunn Khatri (CERN), Mark Mclean (CERN), Miguel Navarro Baeza (CERN), Wilfried Devauchelle (CERN)