| | Current status: Fridge is warming. Mix is recovered, pumps are off. Main bath Dewar is dropped 6“ with HEPA filter fan blowing on top. Remaining LHe boiled off overnight. MC and Sorb temperatures are pretty flat. |
| 0845 | Sorb = 89 K, IVC >1e3 mbar (overpressure?) |
| 0850 | Open valve from IVC to high-pressure relief valve. No hiss or anything. Gauge still reads >1e3 mbar. |
| 1000 | Ice has built up along the baffle poly so that its stuck to the Dewar. Can't be lowered further. Reposition blower to blow down into top of bath. |
| 1050 | MC = 62 K (Cernox), Sorb = 111 K |
| 1155 | Worked MB free of ice, lowered it below the IVC. Put plastic bag over fridge and put blower into MB. Sorb and MC heating slopes increase. |
| 1200 | Pump out lines to cryostat vacuum jacket port to 6.3e-3 mbar. Open vacuum jacket valve: pressure increases to 0.1 mbar. |
| 1215 | MC = 105 K, Sorb = 233 K |
| 1230 | Cryostat vacuum jacket pressure has increased to 0.3 mbar now that cryostat is mostly warm. |
| 1235 | Begin pumping cryostat vacuum jacket with scroll pump |
| 1310 | Begin pumping cryostat vacuum jacket with turbo pump |