Meeting 16 September 2022

Discussion items:

• Design models, stress/thermal calculations

• Engineering analysis and planning

• TCS updates

• Other

PARTICIPANTS: Amy Comer, Bogdan Wojtsekhowski, Brannon Semp, Donal Day, Deb Biswas, Hamlet Mkrtchyan, Hovanes Egiyan, Steven Lassiter, Marie Boer, Rolf Ent, Vardan Tadevosyan, Yeranuhi Ghandilyan, Tanja Horn

ENGINEERING/DESIGN

• PR sent out for magnet steel, coil, etc.

• Prototype

• waiting on electrical work and some monitoring and control interface development
• planning tests this fall

• Presentation on status of CPS at Hall D meeting

• will circulate draft talk for comments/feedback

FLUENT MODEL

• Model consistency checks

• coordinate systems needed to be made consistent between Bogdan/Gabriel FLUKA model and Fluent

• Working on next iteration - need to make consistent mesh with Fluent

• one approach: for each point (x,y,z) in table need power deposition - need to find points that are nearby in Fluent model representative then do interpolation
• another approach: remove all not relevant points (those that give zero results)

• Note: good to make models consistent from the start

HALL D CPS DESIGN

• Longer design (3m) with longer magnetic field (2T)

• Planning fo finish conceptual design and hold a design review in Winter 2022/23, then begin optimization

• Main person working on design: V. Baturin

FLUKA SIMULATIONS

• power deposition in copper block is complete

• scale beam power as needed - power deposition proportional to beam power

• simulations for shielding are ongoing

REMAINING DESIGN AND OTHER

• remaining shielding
• plastic
• final design absorber
• infrastructure list including moving experiment downstreams (assumed operations)

PLANS FOR TCS PROPOSAL

• In approach towards submission of a TCS proposal consider addressing PAC concerns on the experiment

• see PAC report - detailed technical concerns are listed there

• Polarized TCS science case seems good - no need to change at least not right away

• Discussion about path forward - major item: make a plan for addressing PAC concerns in coordinated way

NEXT MEETING: FRIDAY 14 OCTOBER AT 8:00AM ET