HL-LHC BGI - mechanical design update

Wednesday 2 Jul 2025, 15:30 → 16:00 Europe/Zurich

864/2-B14 - SALLE J.B.ADAMS (CERN)

Dominique Bodart (CERN), Gunn Khatri (CERN), James Storey (CERN)

Draft:

Present:

Mark, Laurene, Gunn, James, William,

 

Discussion:

• Laurene presented latest instrument 3D design based on the anode/cathode dimentions provided by Gunn from CST
• The design now has at least 10 mm vacuum gap from pipe to cathode (beam pipe is modified to acomodate larger gap)
• The ceramic standoff is 14mm with ribs for longer HV creeping distance
• The design as it is should be good to send to the RF impedance team for check
• Timepix thermal anchoring - some brain storming, Laurene will try to implement some changes but should not affect the RF impedance
• RFshield thickness and holes: hole can be smaller if the shield is not thick enough (SPS has 8.5mm, here presented is 3mm)

15:30 → 15:50 Discussion in Chiara's office

see the minutes

Speakers: Chiara Pasquino (CERN), Gunn Khatri (CERN), James Storey (CERN), Lauren Karen Margerison, Mark Mclean (CERN), William Andreazza (CERN)

LHC BGI Design 02_07_2025.pdf

LHC BGI Design 02_07_2025.pptx