2023/03/05 (Sunday)
* Lab in-personnel: Zach
| Begin another warm up and pump out | |
| 1530 | Close V6 to stop circulation. |
| 1536 | V6 is now fully closed (Still pressure is rising, currently 1.5 mbar, Condenser pressure falling). Turn off 3He pump |
| 1537 | Open V3 to let mixture from Condenser side into Still side. |
| 1540 | MC(H35) = 0.62 K |
| 1600 | Close 1K Pot needle valve |
| 1601 | Turn on Still and MC heaters to 20 mW each |
| 1602 | Fill LN2 cold trap bath |
| 1605 | Close 1K Pot speedivalve, V4a, 4He pump inlet valve. Turn off 4He pump. Close recovery valve to 4He pump outlet. NOTE: remember to open recovery valve when the pump is turned back on. |
| 1607 | Unplug DCRC1 |
| Im going to proceed more quickly than usual | |
| 1621 | MC(H35)/1KPot = 3.07/2.93 K |
| 1622 | G1(fridge) = 308 mbar. Open V9 to release mixture into dump |
| 1629 | MC(H35)/1KPot = 2.88/3.09 K. |
| 1630 | Check pressure in IVC: 16 nbar, its lower at this temperature |
| 1632 | Pump out IVC with the turbo pump |
| 1940 | MC(H35) = 10.0 K. Turn off MC and Still heaters |