Design and Integration meeting: 08 October 2024 16:00 BST

Zoom: ​https://ukri.zoom.us/j/99571436156

Agenda

• CDR Status
• Engineering.
• Simulations.
• AOB

Notes

Present: Clive Hill, Will Shields, Colin Whyte, Jaroslaw Pasternak, Hywel Owen, Matt Pereira, Rehanah Razak, Ken Long

Apologies: Ta-Jen Kuo

• CDR status
  • JP: highlighted missing chapters/content. Missing chapter to wrong .tex file name.
  • JP: Vacuum value discrepancy between FFA & stage 2 beam line, value change to 10^{-8 in high energy beam line}
  • JP: highlighted reference & typo issues.
  • WS: to add layout to intro section of WP6 chapter.

• Engineering
  • No updates

• Simulation
  • WS: no update
  • JP: New FFA diagram in CDR
  • JP: Space between magnets for cavities.
    • Discussion on angled cavities - they should introduce behaviour like a cyclotron, transverse oscillations that cancel out turn by turn unless there's a resonance. This should be acceptable.
    • The no. turns are also comparable to cyclotron (~1000 cyc. to 10000 FFA)
  • JP: potential problem still exists in the proximity of the FFA magnets to the MA cavity core.
  • JP: Kickers may still be a concern, they may need making shorter & stronger.
    • Worst case, 2 kickers will be needed instead of 1.
  • Maximum field on ferrite cavity should be kept < 0.05T (from kicker field) - could be challenging.
  • TJK to extend the good field region of the FFA magnet to cover 15 MeV beams in BP1 phase.
  • JP: FFA dynamic aperture study added to CDR.

• AOB
  • WS to ask Hywel for PMQ geometry
    • 420 T/m field limit