Difference between revisions of "Minutes-1-15-2015"

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== Electronics ==
 
== Electronics ==
  
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- Nick and Chris started modifying the HVBs: adding capacitors, milling retainers. Some dust (like rust) was found on the top HVBs   
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- Nick and Chris started modifying the HVBs: adding capacitors, milling retainers. Some dust (like rust) and fibers were found on the caps of the top HVBs - picture linked above.  
  
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-
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- Cody: 24 (out 25) new fADCs were tested and only two failed - much better than with the previous production. Cody replaced 10 fADC125 (see logbook entry) following the list of bad channels (with missing bits) given to him by Naomi and Vlad. Will try to fix the bad channels if possible or ship them for repair.
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+
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- Cody: the new 25 fADC125 are here and are being tested, very good results so far. We discussed also the issues with the f125 firmware, but this will be left for the fADC125 meeting.
+
  
 
== Engineering ==
 
== Engineering ==
  
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- The FDC chiller is ready for shipping (or has been shipped), expect it back in 6-7 weeks.
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- Dave presented his plan for 
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- The FDC chiller has been finally shipped for repair.
  
 
- We discussed options for turning off the power of the FDC chiller in case the temperature of the Fluorinert is out of the limits. On the next day Dave looked into this and decided to do something he's doing for HallB: external box that is plugged between the outlet and the chiller (note: 208V three phases 30A). It has a relay inside controlled by the PLC system that is taking the temperature from the epics readings of the chiller.
 
- We discussed options for turning off the power of the FDC chiller in case the temperature of the Fluorinert is out of the limits. On the next day Dave looked into this and decided to do something he's doing for HallB: external box that is plugged between the outlet and the chiller (note: 208V three phases 30A). It has a relay inside controlled by the PLC system that is taking the temperature from the epics readings of the chiller.
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== Other ==
 
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- Eugene expects from the drift chamber groups results on: efficiency, alignment, resolution, by the end of the month.
 
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Revision as of 17:59, 16 January 2015

January 15, 2015 FDC+CDC meeting

Connection

  1. Instructions for Bluejeans meeting connection
  2. FDC meeting ID: 290664653
  3. To join via a Web Browser, go to the page [1] https://bluejeans.com/290664653.

Agenda

  1. File:CDCUpdate15Jan2015.pdf (Mike)
  2. FDC update
  3. Electronics
  4. Engineering Chiller Interlock (Dave)
  5. Other


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