Difference between revisions of "January 28, 2021 CPP Design Meeting/ERR discussion"

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(Agenda)
(Minutes and Action Items)
 
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== Meeting Time and Place ==
 
== Meeting Time and Place ==
Thursday Jan 14, 2021, 2pm
+
Thursday Jan 28, 2021, 2pm
 
Bluejeans https://bluejeans.com/465620466
 
Bluejeans https://bluejeans.com/465620466
  
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* Solid Pb target support and installation [[Media:CPP_Target_pic.pdf]]  
 
* Solid Pb target support and installation [[Media:CPP_Target_pic.pdf]]  
 
** Target change out concept [[Media:CPP_Target_Mech_concept.jpg]]
 
** Target change out concept [[Media:CPP_Target_Mech_concept.jpg]]
 +
* Microscope move?
 +
* Controls needs?
 
* Design/Procurement status
 
* Design/Procurement status
* New Detector position - 3 inches DS to make dark room bigger
 
  
 
* Things to work out
 
* Things to work out
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** Solid target installation
 
** Solid target installation
 
** Documentation for ERR
 
** Documentation for ERR
 +
** Microscope move
  
 
== Minutes and Action Items ==
 
== Minutes and Action Items ==
* ERR discussed - 3 talks to address charge questions
+
* ERR discussion
** Decided to use schedule with CPP run first then Primex - keep other as backup
+
** Meet next Thursday
* Target Discussion
+
** Present preliminary slides
** Rory has target from previous experiment we will use (lead)
+
** Have all Review documentation uploaded (except presentations) by end of week
** Need manual insertion of lead and empty target with good precision (change 1X per day)
+
** Revamp schedule to meet August start date (Tim)
** Need vacuum right up to target (thin kapton window -125 microns)
+
** Add Target design and procurements to schedule
** Desire helium bag inside CDC
+
* Decided to put a new 1/2 rack on wheels on north side of DS platform for electronics
** Need to develop design for target change out that can be done quickly and precisely
+
* Electronics and controls needs discussed
** Target location 64 cm US of existing target (Hall D 1 cm US of 0,0)
+
** 864 wires- 12 FPC modules - 1 crate
** Vacuum system needs to be designed -continue 1.5 inch tube
+
** 6 shv cables - Caen HV supply
* Need to develop talks for CPP review to address charge
+
** 24 LV channels
 +
* Target design discussed - generally accepted as a concept to be able to switch targets quickly and accurately (< 1mm variation)
 +
* Microscope needs to be moved approx. 2m DS
 +
** Need to check on moving racks with detector or are cables long enough?
 +
** Add to schedule
 +
* Discussed steel absorber thickness.
 +
** Total thickness should be within +/- 1cm
 +
** Each section should be withing +/- 2cm
 +
* Gas System discussed
 +
** Using CDC mixing tank
 +
** All chambers in parallel
 +
** Rory requests controlling equal flow to each chamber (6 flow tubes)
 +
** Are bubblers needed for each chamber?
 +
** Rory to give additional requirements for the gas system

Latest revision as of 12:43, 1 February 2021

Meeting Time and Place

Thursday Jan 28, 2021, 2pm Bluejeans https://bluejeans.com/465620466

  • Present - Elton, Dave, Stephanie, Ilya, Rory, Mark S

Agenda

          Media:CPP_Schedule_before_primex_v2.pdf 
          Media:CPP_Schedule_after_primex.pdf
  • Things to work out
    • Gas line manifold
    • 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

  • ERR discussion
    • Meet next Thursday
    • Present preliminary slides
    • Have all Review documentation uploaded (except presentations) by end of week
    • Revamp schedule to meet August start date (Tim)
    • Add Target design and procurements to schedule
  • Decided to put a new 1/2 rack on wheels on north side of DS platform for electronics
  • Electronics and controls needs discussed
    • 864 wires- 12 FPC modules - 1 crate
    • 6 shv cables - Caen HV supply
    • 24 LV channels
  • Target design discussed - generally accepted as a concept to be able to switch targets quickly and accurately (< 1mm variation)
  • Microscope needs to be moved approx. 2m DS
    • Need to check on moving racks with detector or are cables long enough?
    • Add to schedule
  • Discussed steel absorber thickness.
    • Total thickness should be within +/- 1cm
    • Each section should be withing +/- 2cm
  • Gas System discussed
    • Using CDC mixing tank
    • All chambers in parallel
    • Rory requests controlling equal flow to each chamber (6 flow tubes)
    • Are bubblers needed for each chamber?
    • Rory to give additional requirements for the gas system