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R&D (Cryogenic)
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RishabhBajpai - 09:20, Tuesday 04 June 2024 (3590)Get code to link to this report
Test Cooling single cryocooler

Overview: Tested the cryocooler operation with water supply to Matsuo-san lab shut off.

Conclusion (Hypothesis): Closing supply at Matuso-san lab may have cut off the supply to the GWSP cryocooler.

Details: I turned on the cryocooler at 8:27. The cryocooler turned off on it's own at 8:47. The following errors were displayed:

  • Helium Temperature Err
  • Water Temperature Err
  • Water Flow Err

Observations: The cryocooler body was not hot. The helium supply tube was hot. The return supply tube was cold. The Temperature of both water supplies was normal. Note: All these temperature measurements are subjective to me holding the parts.

I am thinking that the water supply to our section was also cut off by the valve Matsuo-san shut.

Next: Confirm if the water is flowing into the cryooler.

Comments related to this report
RishabhBajpai - 15:36, Tuesday 04 June 2024 (3592)

It truns out that there was some issue with the cooling tower on top of building 2 so the water being pumped was warm. I will do a standalone test next time the water supply to Matsuo-san lab can be turned off.