June 18, 2020 CPP Design Meeting

Meeting Time and Place =

Thursday June 18, 2020, 1:30pm Bluejeans https://bluejeans.com/735541157/3638?src=calendarLink

• Present - Elton, Dave, Stephanie, Ilya, Rory (remote)

Agenda

• Minutes from last meeting https://halldweb.jlab.org/wiki/index.php/June_04,_2020_CPP_Design_Meeting
• FY2020 Procurement Priorities Media:CPP_Procurement_Priorities.pdf
• Design/Fab/Install schedule Media:CPP_install_schedule_2021.pdf
• Shielding Simulation - Ilya
• 3D model - show progress
• Upcoming run, possible tests Media:CPP_Tests.pdf

Assume that nominal the GlueX configuration consists of

• No Pb shielding
• DIRC installed
• Solenoid field at 1350 A

CPP Test Configuration

• With and without Pb shielding
• DIRC removed
• Solenoid field at 1350 A (no change)

• • CPP test DAQ setup: 2 hrs
  • Repeat measurement with nominal GlueX configuration: 2 hrs
  • Configure experiment for CPP Test: 38 hours
  • Start with no DIRC, no shielding
  • Take data: 2 hours
  • Install Pb shielding: 6 hours
  • Take data: 2 hours
  • Restore nominal GlueX configuration: 26 hours.

Total time = 2 + 2 + 38 + 2 + 6 + 2 + 26 = 76 hours ~ 3 days

• Things to work out
  • Gas line manifold
  • Adjustable lead absorber
  • Alignment hardware
  • Complete structural analysis
  • Develop Detailed installation plan
  • Develop Design/operational/Maintenance Requirements

Minutes and Action Items

• Reviewed minutes of last meeting
• Ilya presented simulation and showed 1/2 steel bolts through the adjustable lead is fine
• work on details of beam tests this summer (Bobby)
  • Lead should be as close to TOF as possible
  • TOF in normal operating position
  • Work out install process/schedule with tech group
  • Ensure 18cm square opening in lead
• Proceed with procurements as outlined
• Set up new meeting in 2 weeks