2021/10/01 (Friday)
- Lab in-personnel: Matt, Giulia, Himangshu
| Status | Run 74 finished. Warming up. |
|---|---|
| All mixture is in dump. Fridge isolated. 1K Pot isolated. LN2 Trap 2 still has contaminants in it. He and LN2 in IVC, LN2 in cryostat vacuum jacket (CVJ) | |
| 1000 | MC(Cernox) = 283.8 K. That should be above dew point. |
| 1010 | Start pumping out CVJ, with Scroll pump until < 0.1 mbar, then switch to Turbo Pump |
| 1450 | Turbo on CVJ = 0.14 ubar. With Turbo valved out for one minute, CVJ = 0.34 ubar. Stop pumping out IVC. Reconnect vacuum manifold hose to IVC port. |
| 1500 | Begin removing MB bolts |
| 1520 | Lower MB into pit |
| 1545 | Erect clean tent at bottom of fridge and wipe down inside with methanol |