April 08, 2021 CPP Design Meeting

Meeting Time and Place

Thursday April 08, 2021, 3:30pm Bluejeans https://bluejeans.com/465620466

• Present - Elton, Dave, Stephanie, Ilya, Rory, Mark S, Beni, Simon, Mark I

Agenda

• Minutes from last meeting https://halldweb.jlab.org/wiki/index.php/February_25,_2021_CPP_Design_Meeting/ERR_discussion
• Readiness Review Report
  • Media:CPP_ERR_Report.pdf
  • CPP and NPP Readiness Review
• Lead Configuration
  • Media:Lead_joints.pdf
  • Media:Lead_joint_side.pdf
• MWPC Issues
  • Media:MWPC_issues.pdf
• Microscope move
  • Media:Microscope_Move.pdf
  • Media:Microscope_Location.pdf
• Design/Fab/Procurement status
  • Stand
  • Steel
  • Fcal platform mods
• Things to work out
  • Gas line manifold/bubblers (Beni has some)
  • Complete structural analysis
  • Develop Detailed installation plan
  • Develop Design/operational/Maintenance Requirements
  • Modified US vacuum system
  • Solid target installation
  • Documentation for ERR
  • Microscope move

Minutes and Action Items

• James to make parts for Microscope new location by end of June
• Tim to re-measure distance Microscope can move DS
• Ilya stated that the 45° joint in the lead absorber is not an issue. He will have a closer look at the 90° joints
• Need to machine the steel on the 90° joints of the lead absorber so there are no gaps
• Tim (Stephanie)to send Beni US moveable lead shield configuration
• Move meeting to 3:30 and add Beni