Difference between revisions of "Minutes-3-14-2013"

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(Created page with "March 14, 2013 FDC meeting = Agenda = # Production [http://www.jlab.org/Hall-D/detector/fdc/production/FDC_Construction_March_14_2013.xlsx Construction Tracking] (Dave) #* Spare...")
 
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= Minutes =
 
= Minutes =
  
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Participants: Bill, Dave, Chris, Nick, Simon, Beni, and Lubomir.
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Participants: Bill, Chris, Nick, Simon, Beni, and Lubomir.
  
 
== Production ==
 
== Production ==
  
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- Dave: one more cathode with the daughter cards installed. Chris and Nick finished the HV cabling/connectors for the last package (#2). The package is ready for testing, just have to install it on the strong-back and also drill holes at the periphery of the end-window to attach the HV cables at the bottom. The PR for Vision Machine (for the gas blocks and thick spacers) went through, Adam already contacted Bill with this respect.
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- Dave (not at the meeting) prepared the Production Tracking: all cathodes foe the spare package are ready. We will built also one extra cathode that is tensioned now. Wire planes: Chris is coming tomorrow to Blue Crab to finish with the population of the last two wire planes. Then it will remain four wire planes (one will be extra spare) to be deadened and we are done with the spare parts.    
  
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- We are planning to fix the HV problem in package #3 starting next week when the mounting table will be available. The problematic HV sector (#2, 20 wires) is in plane 6 (not 5! as in the previous minutes), so it will be easier since we will open it from the back of the package. Bill agrees this is doable.
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- On Friday package #1 was moved from 126 to Blue Crab and then package #2 - from Blue Crab to 126. After connecting #1 to Nitrogen it was found cell #5 is leaking; turned out the barb connector for the guage tube was loosely connected. These connectors are glued initially with super glue, but later on some of them (and not on this one) green epoxy was added. Casey was able to glue a new barb connector (not easy to reach the spacer ring  since you have only 5mm between the cathode and the wire frame) and fix the problem. Then green epoxy was added on all the connectors of packages #1 and #4 that didn't have it before (5 out of 12). Bill wants to try with Casey using shoe glue that better sticks to polyethylene.  
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== Rebaselining update ==
 
== Rebaselining update ==

Revision as of 16:33, 14 March 2013

March 14, 2013 FDC meeting

Agenda

  1. Production Construction Tracking (Dave)
    • Spare parts
    • Package #3 repair
  2. Installation schedule (last week), schedule (this week)(Lubomir)
  3. Engineering (Bill)
  4. Electronics (Chris, Nick)
  5. Tests at EEL126 FDC E-log (Beni)
  6. Other


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