HL-LHC BPM Design

→ Europe/Zurich
Dmitry Gudkov (Budker Institute of Nuclear Physics (RU)), Emilien Rigutto (CERN), Gerhard Schneider (CERN), Michal Krupa (CERN), Nicolas Sebastien Chritin (CERN)
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15:30 → 15:50

Follow-up on actions from the previous meeting

 

  • [x]Simulation generally looks ok, Gerhard will discuss with Vincent, and the results will be presented during the design review meeting.

    • --> not yet discussed, but will be done soon 

      • 21.10: informally OK, will be confirmed during the review.

  • [x]do we braze the interface and cooling link or weld it?

    • --> answer from Laurent: ultrasound welding

    • --> would be good to discuss once again with VSC and Fritz --> Dmitry will contact N. Kos, and maybe Nicolas will discuss with Fritz after

      • discussed with N. Kos, ultrasonic welding is more tested solution

  • [x]an email with the entire process will be prepared and sent to VSC and MME colleagues --> action Dmitry

    • --> the cost estimate to be done with MME (Dmitry)

      • 21.10: meeting with Emilien on Friday, drawing is needed --> action Nicolas

  • [x]D2 integration --> meeting with Arnaud last week (Nicolas), cables are still to be designed. Official green light for freezing BPM design can be requested, but to be checked with VSC.

    • --> information received from Arnaud and Elodie, seems everything is OK, to be confirmed --> Nicolas

    • --> Electrical cables still need to be advanced (interferences found in the 3D), will be fixed by Nicolas.

      • to be discussed in integration session

2. Plans for design documentation release

  • []list of persons for drawings approval procedure to be prepared --> action BI (WP leaders, ATS group leaders)

  • []21.10.20 --> contact Hector or same list as functional specification?

  • []all drawings must be released before launching the approval procedure --> action all

3. AOB

  • [x]Review: Gerhard discussed with Delio (will not attend the review) and Vincent

  • []Tubes interfaces and routing: check what we have on Q1 side.

  • [x]Meeting should be organized with Fabrice and Arnaud together to check the integration --> action Nicolas

  • [x]Proceed with 2nd control of transitions drawings for type B --> action Gerhard

  • []Release simplified BPM body LHCBPMQSTMB0001--> actions Dmitry (ready for check), Nicolas (check), Gerhard (release)

    • --> status:

  • [x]Check cooling tubes interfaces and orientation with VSC (Fabrice) --> action Nicolas, probably Monday next week, Nicolas will organize the meeting with Fabrice and us, if possible

    • action closed

  • []Check the maximum force the welding seam between the cooling tube and the BPM body can withstand --> action Dmitry, Gerhard

  • []Follow-up on quench study with Susana --> action Dmitry

15:50 → 16:10

Design of covers and springs for type B BPM

  • 1 cover instead of two

  • commercial springs feuerherdt

  • Brackets design doesn't allow extra angles on the cooling tubes --> SmarTeam number and access give to Nicolas --> action Dmitry

  • For type A --> brackets to be integrated as well

  • Check brackets integration with Fabrice --> action Nicolas

 

16:10 → 16:20

Integration of BPMs and welding machines representation on the drawings

  • Nicolas: we already have machines in 3D models

  • Preliminary 3d will be prepared and agreed with Fabrice

  • Cooling tubes design will have to be agreed with Fabrice

  • Contact person for D2 integration - Elodie

 

16:20 → 16:30

AOB

Electrode design --> progress made, on  track, next week the discussion with Karol can start.

  • D2 --> button design progress made, need to produce drawings for discussion with suppliers and more realistic 3D model --> need to change one dimension on the D2 body --> action Michal and Nicolas (organize meeting, Monday 26.10)

  • D2 --> extra 1 mm on the aperture --> to be checked, action Michal, Nicolas

Other projects? -- > next two weeks BPM work can be done (60% of Nicolas time)

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