Latest revision as of 08:42, 29 April 2020

Meeting Time and Place =

Minutes from last meeting https://halldweb.jlab.org/wiki/index.php/April_2,_2020_CPP_Design_Meeting#Minutes_and_Action_Items
Overall description https://halldweb.jlab.org/DocDB/0041/004180/006/CPP_update_oct19.pdf
Rory's comments Media:Rory's_screen_shots.pdf
3D model - show progress
Alignment tolerances
- Relative to Beamline
  - Steel Absorbers, x,y,z
  - Lead Absorber, x,y,z
  - Detectors, x,y,z
- Relative to one another
- Repeatability
Things to work out
- Alignment tolerances
- Electronics shielding Media:Muon_Chamber_Shielding.pdf
- Grounding Media:Muon_Chamber_dimensions.pdf
- Complete structural analysis
- Develop installation plan
- Develop Design/operational/Maintenance Requirements

Reviewed minutes of last meeting
Need to notch steel at bottom to clear connectors -- Stephanie
Look at using a 90° connector -- Rory
Check gas line bending to clear beam left dark room -- Rory
Alignment requirements relative to BL - X&Y ±2mm, Z ±1cm
- Met with survey - need to add x,y and z adjustments for the entire system to achieve this
Desire to have a small block of 5cm lead movable
- can be a local adjustment
- Ring with 7.5cm hole
- ok to have 10cm thick where overlap is
- Holes to be square with radius corner
- Hole size should have 1mm precision
- What should be the size of the hole in the large lead absorber?
Need to check repeatability of detector after moving FCAL platform
Develop a procurement plan for this FY -- Tim
Set up new meeting in 2 weeks

@@ Line 27: / Line 27: @@
 == Minutes and Action Items ==
 *Reviewed minutes of last meeting
+* Need to notch steel at bottom to clear connectors -- Stephanie
+* Look at using a 90° connector -- Rory
+* Check gas line bending to clear beam left dark room -- Rory
+* Alignment requirements relative to BL - X&Y ±2mm, Z ±1cm
+** Met with survey - need to add x,y and z adjustments for the entire system to achieve this
+* Desire to have a small block of 5cm lead movable
+** can be a local adjustment
+** Ring with 7.5cm hole
+** ok to have 10cm thick where overlap is
+** Holes to be square with radius corner
+** Hole size should have 1mm precision
+** What should be the size of the hole in the large lead absorber?
+* Need to check repeatability of detector after moving FCAL platform
+* Develop a procurement plan for this FY -- Tim
+* Set up new meeting in 2 weeks