Difference between revisions of "Minutes-4-18-2013"

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= Minutes =
 
= Minutes =
  
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Participants: Eugene, Fernando, Dave, Chris, Nick, Simon, Beni, and Lubomir.
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Participants: Eugene, Fernando, Bill, Dave, Chris, Nick, Simon, and Lubomir.
  
 
== Production ==
 
== Production ==
  
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- Dave for the spare package: Two wire planes (#2 and #3) have been deadened, two more remaining. The filed wire on #2 was fixed (broke during deadening). It turned out we don't have enough HV cables (short cables with male connectors) that are soldered on the wire frames; we have to order them. This is because we originally planned for 4 spare cells. 
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- Dave for the spare package: Just one wire frame remains to be deadened. We will start the installation of the first two spare cells next week. The plan is to install the last two cells with thicker spacer rings (just temporary to test the cluster counting technique). Therefore we need longer treaded rods, later they will be replaced with standard ones. As for the metal pins we can leave with the standard (short) ones, it will affect only the top cathode that can be centered with pins from the top. Eventually, we want to use He/ Isobutane   
  
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- Package #3 repair: the three field wires on the wire frame of cell #6 were fixed and on Monday we installed the sixth cell on the package upside-down. We ended up holding the spacer ring with fingers (taping to polyethylene didn't work) when installing it together with the wire frame, but it was successful: no gas leakage was found. Since Monday we are flushing the package with gas, oxygen went down to 700ppm and today we applied 2000V/-500V so far without problems. We will continue testing it till Monday, but already tomorrow we can start replacing the cooling tubes - they have to be positioned in a different way as for the other packages. Next week we plan to finish also with the grounding connections, HV connections and with the installation of the manifolds. Then we will move it (during the week of 22-26 of April) to 126 for testing with the full electronics. Fernando: by that time we will have 30 fADC125 ready to be used (3 will go to CMU).
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- Package #3 status:  
  
 
== Installation ==
 
== Installation ==

Revision as of 15:42, 18 April 2013

April 18, 2013 FDC meeting

Agenda

  1. Production Construction Tracking (Dave)
    • Third package status
  2. Installation (Lubomir, Bill)
    • FDC installation document
    • Practicing at Blue Crab
  3. Engineering (Bill)
    • Cooling system tests
  4. Electronics (Chris, Nick)
  5. Full electronics tests FDC E-log
  6. Other


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