2023/10/20 (Friday)
* Lab in-personnel: Zach
| 1431 | Check contents of warm LN2 Trap 1: 15.1 on G1. Pump it out with the scroll pump. |
|---|---|
| 1435 | G1 = 2.3 mbar and stable, stop pumping on Trap 1 |
| 1436 | Insert cold trap 1 into and begin filling the LN2 cold trap dewar with LN2 |
| 1437 | Begin cryocleaning mixture through cold trap 1 following the procedure in procedure:cryoclean_mixture |
| 1441 | Open V6 to 11.0% to start mixture flowing |
| 1446 | Open V6 to 11.9% to restart flow |
| 1452 | Open V6 to 12.1% to restart flow |
| 1544 | Open V6 to 12.2% to restart flow |
| 1559 | End cryocleaning mixture through trap 1. Pump mixture to dump |
| 1612 | P1 = 0.085 mbar, G1 = 1.9 mbar and stable. Close all valves and turn off 3He pump, leaving 716.1 mbar in dump |
| 1616 | Remove cold trap 1 from the LN2 bath to warm up overnight |