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Dear All,

here is some notes from the breakout session, compared to the January review there have been much less questions.

Cheers elke

Questions/Notes for IR:

Geary’s Breakout overview:

- Size of magnet length and inner and out radius

- Is repurposing really always cheaper

- How have the expensive cost items been verified for reasonably of cost

o Only single vendor items

Holger’s Breakout Talk:

- Is there any radiation problem for direct wind magnets

- No direct wind magnets in LHC, long story on direct wind magnets

- Yield for direct wind magnets? Till now 100%

- Magnet testing will happen at BNL, before installation.

Qian’s Breakout Talk:

- The first article cavity could be made an electron cavity if it slightly underperforms and the electron machine has possibility less demands

Charlie’s Breakout Talk:

Need really take all the latest IR changes into account

Beam Background beam gas, SR we really need to update this

David’s Breakout Talk:

No questions

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[E-rhic-ir-l] some notes from the breakout session, Aschenauer Elke-Caroline, 04/24/2019