WP2: Status meeting #26

Thursday 26 Jun 2025, 15:00 → 16:00 Europe/Zurich

865/1-D17 (CERN)

 - AoB
     - it was decided not to add any additional PCs in P42 → agreed at the meeting 
     - there is no evidence from simulations that would be needed and cannot just ask for more 
     - we will have to wait to LS4 in case we want another one now
     - we can still request for re-organization of some elements if needed
 - Assessment of need of laminated correctors in P42
     - need to give numbers in A/s on the correctors (FV action)
     - Philip and Thomas seem to be OK with the numbers shown, but can only confirm when the A/s for each corrector are shown
     - FV to followup with OP on the instability seen in H

 

Miguel Lino presented and overview of the P42 vacuum consolidation as planned for NA-CONS and then the changes requested by HI-ECN3.
- low 10^-3 mbar is the best that can be achieved with the current primary vacuum pumping group technology.
- an overview of changes was presented of what has to be removed, even it put back in place but at a different height / transverse position.
- to fully predict the performance of the future installation we need simulations and these new simulations (not previously done) need to be benchmarked.
- for the end of P42, it is important to note that the beamline is realigned to a new height and transverse position. This implies the removal and reinstallation of many sections of vacuum and new supports.
- iteration needed with WP3 and WP4 for exact interface to BDF
- the larger dilution chamber and the sector valves therein dominate the cost.
- resources will be required to do the technical study
- Thomas: all needed information provided? yes - p4 quite clear.
- highlighted that the changeovers in P42 are foreseen for the 2x YETS after LS3 but there is a large quantity of work required and these YETS could be quite busy irrespective.
- the dilution chamber would require a study - depending on the concept and timeline. This year would not be possible.

15:00 → 15:15 Discussion on steering on non-laminated MDX

Speakers: Francesco Maria Velotti (CERN), Philip Schwarz (CERN)

Slides

Slides

15:15 → 15:30 Round table and AOB

Topics for discussion:
- Definition of vacuum interface between P42 beam line and BDF target complex

Speakers: Aleksandr Gorn, Francesco Maria Velotti (CERN), Laurie Nevay (CERN)

output.png

15:30 → 16:00 P42 Vacuum Layout for HI-ECN3

Speaker: Miguel Lino Diogo Dos Santos (CERN)

[HI-ECN3] P42 VACUUM _M.Santos_v1.0_26.06.2025.pdf

[HI-ECN3] P42 VACUUM _M.Santos_v1.0_26.06.2025.pptx