NDOS Commissioning Meeting 2011/07/14¶

Attendance: Jon, Peter, Chad, Susan, Gary, Raphael, Mark Mathis, Mat, Denis, Mark, Andrew, Minerba, Holger, Leon, Sue, Jan, Nick, Dominic, Zeb, Gavin, Martin,

Agenda:

1. NDOS Update
2. DataCheck Update
3. DCS Update
4. DAQ Update
5. AOB

NDOS Update¶

• APD recovery (Leon): working on modifying test stand to efficiently bias APDs for long periods of time. Hope to ship some APDs back next week.
• Sue: Ken is concerned about stressing seals on APDs by frequent enabling and disabling cooling.
• Mat placed balloons around optical connectors on 5 modules on diblock 3 and 5 failed golden channels.
• Leon: pressure tests should be done on modules
• Mark: sucking on optical connection may be better way to test for tightness.
• Consecutive DSO scans were done yesterday
• 2 minute turn off, we lost 1/75
• 10 minute turn off, we lost 20%

DCS Update¶

• Martin:
  • Occassionally CSS was not able to see all DCMs
  • Increased amount of memory that CSS can use; it is now working much more smoothly
  • Overview page is now part of base release (default)
  • Jon: documentation? Martin: wrote some basic info.
  • Gennadiy is working on alarmer and making good process
• Chad: hasn't seen any real improvement in NDSB since 2nd humidifier was installed. Hovering around 40% RH. This weekend it should become much more humid, so we'll keep an eye on it.
• Gary: what's the point of recording env. data in online form if shifter doesn't know what to look for?
• Jon: we'll work on this

DAQ Update¶

• Peter: nothing relevant to report

DataCheck Update¶

AOB¶