2023/04/19 (Wednesday)
- Lab in-personnel: Himangshu, Zach
| 1356 | Take LN2 dewar to be filled |
|---|---|
| 1458 | Insert LN2 cold trap 1 and begin filling cold trap dewar with LN2 |
| 1510 | Continue to fill cold trap dewar, let mixture into the cold trap. |
| 1515 | Begin cryocleaning mixture through cold trap 1 following the procedure in procedure:cryoclean_mixture |
| 1520 | Open V6 to 12.0% to restart flow |
| 1528 | Open V6 to 12.2% to restart flow |
| 1542 | Open V6 to 12.3% to restart flow |
| 1620 | End cryocleaning mixture through trap 1. Pump mixture to dump |
| 1640 | P1 = 0.095 mbar, G1 = 1.8 mbar and stable. Close all valves and turn off 3He pump, leaving 717.9 mbar in dump |
| 1645 | Remove cold trap 1 from the LN2 bath to warm up overnight |
| 1600 | Double-bag Tower and place in anteroom. |
|---|---|
| 1615 | Polish upper surface of adapter ring with ScotchBrite and clean with methanol. Polish bottom edge of 30 mK can with ScotchBrite. |
| 1620 | Bring Tower on stand into fridge clean tent. Put it on the scissor jack and center it below fridge. Raise tower stand ring and attach with three bolts to IVC bottom. |
| Orientation of tower. Face 6 towards East(Stripline) |
| Raise Tower with scissor jack. Be careful to orient tower as it is raised so that pins at the DIBs don't hit the lip of the 30mK can. Remove temporary tape holding thermometer wire to outer edge of 30mK adapter. Quick electrical check after tower attached to 30mK can. Tower Thermometer reads OK. Detector channels not shorted to chassis. Motor coils OK. Goldman thermometer OK, not shorted. |
| Finish bolts attaching 30mK adapter to 30mK can and torque them. |