• Lab Update - Run 77

· Starting to warm up the fridge to swap the SQUETs to that of Run 76 · Waiting on regaining wiki access to move forward with the steps. Yesterday, Ping did her first partial 10k warmup and pumpout procedure with remote help from Zach. · Working on setting up cdms3 for new Midas DAQ (instead of cdms2) since running the new Midas DAQ seems to cause RPC connection issue with old Midas DAQ. This will be used to test the RevE board once we get( or make our own) 100pin-to-50pin adapater board. · Prisca suggested to take measurements to monitor the resistance of the motor coils Y arm(since X arm is not connected) as a function of temperature. Setup: the Cable 2 is now connected to BOB and the coil readings will be taken in intervals using Fluke multimeter.

• Priority Updates

• General Updates
  • Himangshu
    • · Fridge Monitoring Updates: After yesterday’s GHS leak test at SNOLAB, there are changes to the Fridge diagram which I working on now.

· Cryo-alarm update: Updated all alarms types for warm-state of the fridge alarm and is ready to use, while cold-fridge alarm is still in progress. · There are no LN2 cold trap pressure gauge to monitor in this fridge, so Paul Brink suggested to use the parameter “Flow” to use as a proxy. Figured out that a value of 50 ml/min is a good state for the fridge(else an alarm) using the Monitoring page plotter page. Working on adding phone calling feature similar to CUTE, but Ziqing has mentioned that the current code with Twilio server seems to have bugs.

• Shubham
• Jack
• Derek
• Zach
• Scott
• Giulia

• Fun Update