Meeting 29 April 2022

Discussion items:

• Design models, stress/thermal calculations

• Mechanical Updates
• Temperature profile Model vs. Expectation

• Engineering analysis and planning

• TCS updates

• Other

PARTICIPANTS: Bert Metzger, Bogdan Wojtsekhowski, Hovanes Egiyan, Steven Lassiter, Vardan Tadevosyan, Hamlet Mkrtchyan, Tanja Horn, Igor Strakovsky, Amy Comer, Rolf Ent, Donal Day, Marie Boer,

MECHANICAL UPDATE (Steven, Bert, Amy)

• Bert M. working on magnet

• tolerances, thermal expansion, conductor leads etc.
• still need to include dimensions on some drawings

• Color code:

• grey: tungsten blocks (in-hand)
• green: yoke
• yellow: coil

• Good progress on thermal modeling and prototyping

• some concern about the behavior of the model vs. expectation that needs to be addresses

• Overall very good progress

• magnet characteristics suitable for physics - need additional verification from ACC
• some work remains to be done
• some urgency with timeline to get procurement into the system

• Action items:

• Add dimensions to drawings
• Set up meeting with Jay Benesch (ACC) about magnet input
• Resolve issue with thermal model vs expectation
• Start assembling information to prepare documentation, possible a publication in NIM

SHIELDING (Bodgan)

• Tungsten powder procurement in system - some delays, but hope to have those resolved soon

• Lead blocks - needed to supplement tungsten (have enough for outside, but need more for inside). So far received

• Bates: 8 tons
• SLAC 20 tons / 80 tons (that were agreed upon)

• Action items:

• follow up on tungsten powder blocks
• follow up with SLAC on lead blocks

TCS UPDATE (Marie, Vardan)

• Draft has been circulated - including responses to PAC questions

NEXT MEETING: FRIDAY 20 MAY AT 8:00AM ET