General Meeting Summary 7/9/20

PARTICIPANTS: Aaron Brown, Arshak Asaturyan, Bogdan Wojtsekhowski, Charles Hyde, Hamlet Mkrtchyan, Vardan Tadevosyan, Tanja Horn, Petr Stepanov, Patrizia Rossi, Alexandre Camsonne, Vladimir Berdnikov, Carlos Munoz-Camacho, Rolf Ent, Julie Roche, David Hamilton, Paulo Medeiros, Marie Boer,

SUMMARY FROM THE DSG (Aaron Brown)

• Much progress! - check the DSG Technical Documentation Webpage for updates

• Cables

• 390 made, can make 200 cables/month
• plan to test all HV cables

• CAEN crates for EPICS

• 32/34 almost done

• WEDM screens being developed as option for remote monitoring

SUBSYSTEM UPDATES

MAGNET

• Work ongoing

FRAME (Carlos)

• Progress with the assembly - PMT blocks, mu metal assembly,
• Preshaping of wrapping - action: send material to JLab

MECHANICAL (Paulo)

• Req rails for detector out

• Platform already out

• Items left to do:

• magnet support and plate that goes under it
• patchpanel model - where it goes - how it looks like
• beamline - square section in front and a few small sections afterwards
• corrector magnet

RADIATION DETECTOR AND SETUP (Alexandre)

• Preparing tests with helium ionization chamber to measure neutron and photon separately

• Could the setup provide possible anode current measurement in Hall A/C?

NPS TO DO LIST 2020 REVIEW

• Largely on track with schedule adjusted for Covid-19

• Roughly half of list for frame is done
• Crytals on schedule
• HV dividers - plan for path forward exists, waiting on lab resuming normal operations
• Analysis software development ongoing, e.g. see Jacob Murphy's presentation
• Much progress by DSG
• Action: Ask FE/DAQ for presentation at a future meeting

CPS POWER ABSORBER (Bogdan)

• Deformation risk for Cu core due to high temperature (~400-500 degC)

• Narrow beam channel and 40cm long piece with diameter of only few mm
• Deformation of inside slot (where beam is) could be an issue - need beam alignment up to 1mm
• Should look at the details and see how to include room for motion - system is very compact with W shielding

NEXT MEETING: THURSDAY 30 JULY AT 9:00AM (ET)