HL-LHC BPM Design

Friday 8 May 2020, 14:00 → 15:00 Europe/Zurich

Dmitry Gudkov (Budker Institute of Nuclear Physics (RU)), Emilien Rigutto (CERN), Gerhard Schneider (CERN), Michal Krupa (CERN), Nicolas Sebastien Chritin (CERN)

Attendees: Nicolas, Michal, Dmitry, Emilien

Meeting series on Wednesdays @3h30:

• OK for everyone, except Nicolas (still not sure, will confirm later). No meeting next week. Let's keep email/1-to-1 communication.

RF contacts and transitions design

• Design modification is almost done, to be confirmed - @Nicolas
  • Dmitry needs B-type to copy features to simplified BPM
• Discuss next week with Laurent Prever about the tests made with VSC - @Emilien
  • not clear how to prepare round strip for EB welding
  • Feuerherdt can ship pre-formed rings - we can investigate this opportunity after we know more about tests already done at CERN, TBD with VSC if needed.
• Contact Cedric Garion to organize transport of RF contact strip from VSC to Emilien - @Dmitry

Size and tolerances for pockets with tungsten absorbers

• The pocket dimensions are not big enough to provide room for tungsten block - calculations for the pocket increase to be done - @Dmitry
• Modify 3D and 2D accordingly - @Nicolas

VDAM Preparation

• Nicolas is ok to make a presentation, but he will contact VSC to find out what exactly is required for the VDAM meeting - @Nicolas

AOB

• Simplified BPM drawings will be ready next week (CDD code is still needed) - Michal, Dmitry
• Modification of the holes positioning tolerance asked during the measurement bench meeting is done - Nicolas.

14:00 → 14:10 RF contacts and transitions design

14:10 → 14:20 Size and tolerances for pockets with tungsten absorbers

14:20 → 14:30 VDAM Preparation

14:45 → 14:55 AOB