2022/02/20 (Sunday)
- Lab in-personnel: Michael
| Status | Run 75 finished. Began warmup two days ago. 1K Pot pumped dry and isolated. All mixture in dump, fridge isolated. LHe Trap and LN2 Trap 1 still have contaminants. Some He gas in IVC and in Cryostat Vacuum Jacket. Main bath empty and disconnected from recovery. |
|---|---|
| 1100 | MC(Cernox) = 294 K |
| 1100 | Check pressure in Cryostat Vacuum Jacket: 4.6 mbar Start pumping out CVJ with Scroll Pump |
| 1110 | Scroll pump pressure reaches 0.1 mbar. Switch to pumping with Turbo Pump. Turn off Scroll Pump. |