January 12, 2022 CPP Design/Install Meeting

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Meeting Time and Place

Thursday January 12, 2022, 3:00pm Bluejeans https://bluejeans.com/465620466

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

Agenda

Cpp install chambers.pdf Cpp S&A chambers.pdf 
    • Steel absorbers have been fiducialized
  • Installation/assy 3D Model and dwgs all completed except Microscope move
    • LV attach
    • Scintillator orientation
  • Microscope move
  • Target Design in work
    Cpp target5.jpg
    Cpp target6.jpg
    Cpp target7.jpg
    Cpp target8.jpg
    • Most parts made (a good portion are 3D printed)
    • Will do a test assy next week


  • Things to work out
    • Gas system, manifold/bubblers (Beni has some)
    • Complete structural analysis - approved by Tom Renzo - need to release into system
    • Develop Detailed installation plan
    • Develop Design/operational/Maintenance Requirements
    • Modified US vacuum system
    • Solid target installation
    • Installation drawing including Microscope move
    • CPP Detector operations in Hall D OSP
    • Possible use of nitrogen flow for cooling electronics in Faraday cage

Minutes

  • LV box details worked out
  • For fiducializing chambers, all four edges or bolt holes can be used to find center. Machining is very accurate
  • Rory wants 2 best chambers at the DS end
  • 4 scintillator paddles, 2 BL and 2 BR in vertical position equally spaced (15" oc). To be held by light guides, maybe a V block
  • Lead Target e pressed flat by Rory
  • Microscope move meeting scheduled for 3pm Tuesday

Action Items

  • Stephanie to design thinner "L" bracket for the LV box
  • Tim - Get with S&A group to discuss chamber fiducialization and alignment
  • Rory to flatten lead target
  • Stephanie to model and place scintillators and attachments
  • Release installation drawings - Tim/Stephanie
  • continue work on target installation - Bobby