Meeting 30 April 2021

DISCUSSION TOPICS

• Design models, stress/thermal calculations

• Engineering analysis and planning

• TCS Updates

• Other

PARTICIPANTS: Amy Comer, Arshak Asaturyan, Bogdan Wojtsekhowski, Rolf Ent, Gabriel Niculescu, Hamlet Mkrtchyan, Hovanes Egiyan, Josh Crafts, Tanja Horn, Steven Lassiter, Vardan Tadevosyan

CPS MAGNET/ABSORBER CONCEPTUAL ENGINEERING DESIGN (Steven)

• Stability and controls of magnet power supply: 0.1% (100 ppm)

• Action item: check for existing power supply

• Magnet weight: 5 tons (without shielding)

• Coils - no spare needed - anticipate no accessibility to magnet during experiment

• Design for possible water leaks in copper absorber - main goal is to minimize the risk for any leaks

• Discussion procurement tungsten copper

• Action item: 90:10 or 80:20 - get quotes, check machining capabilities (Bogdan)
• Aim for sending out by end of May

• Lead blocks - at JLab in lead storage area

• 20 tons
• Action item: Schedule with Walter to look at some samples for surface quality etc. (Josh)

TCS UPDATES (Vardan)

• Good progress on beam background (rates look manageable)

• Know rates, so know what technology for GEM --> pixel based, can handle rates, but need certain threshold

• Still need to evaluate physics background (exclusivity)

• Action items:

• Progress and status - key plots
• Compare PAC comments - in proposal needs to be addressed line by line
• Proposal draft - originally first draft was requested by May 1

• PAC proposal submission deadline: 24 May

NEXT MEETING: FRIDAY MAY 14 AT 8AM ET