Optics Meeting Oct 29 2024 0100PM ET

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Agenda

1. Quick update on sieve power deposition (Kate) [1]
2. Review of Evan's magnetic field study progress (Kate/David for Evan) [2]

Attendance

Vassu, Kate, David, Zuhal, Paul S., Sayak

Minutes

1. at Mike Dion's request, Kate has re-checked earlier power deposition studies in the blocker (and sieve), now with the final as-built geometries for each. So surprises, the worst case is the blocker with 5-pass beam on the long lH2 target: 19.9 W/muA (earlier version from March 22 was 18.9 W/muA). Also checked power deposition for sieve under same conditions: 19.4 W/muA, a little smaller, as expected). Also checked sieve with thin optics targets at 4-pass beam: 0.113 W/muA for Optics 1 (Upstream) and 0.090 W/muA for Optics 2 (Downstream), and 1-pass beam with optics 1 (0.576 W/mua). Upstream target larger than Downstream since less of cone of scattered beam makes it through the hole in the sieve; presumably wider cone of scattered particles for 1-pass than 4-pass, so more scattered flux in sieve in that case. All seems to make sense.

Meeting link information

See email invitation, or contact David Armstrong, Kate Evans, or Ciprian Gal for Zoom link