| Status: | Main bath lowered. Fridge bagged with fan blowing on it overnight. IVC has some He transfer gas in it. All traps are clean and at room temperature. |
| 0845 | MC (Cernox) = 297 K, nearly flat. IVC ~ 100 mbar according to mechanical gauge on He fill line. |
| 1000 | Raise and clean inside of clean tent. |
| 1045 | MC Temperature = 297K still. Well above dew point. Ready to open up IVC. Add N2 gas to IVC until overpressurization. At one point, I checked the check valve, and it actually sucked my finger onto the tip, which means that the check valve does allow some backwards flow, which is worrisome. Perhaps it's old? |
| 1050 | Turn off turbopump because it deserves a break. |
| 1645 | Remove tower and place on clean desk in clean room |
| | Tower ready for electrical checkout, last one was on 2015 November 20 |