2022/02/21 (Monday)
- Lab in-personnel: Matt, Michael, Shubham
| Status | Run 75 finished. Warmup for last several days. 1K Pot pumped dry and isolated. All mixture in dump, fridge isolated. LHe Trap and LN2 Trap 1 still have contaminants. ~1 atm exchange gas in IVC. Cryostat Vacuum Jacket pumping out overnight. Main bath empty and disconnected from recovery. |
|---|---|
| 1310 | MC(Cernox) = 295 K |
| 1315 | Turbo on Cryostat Vacuum Jacket: 25 ubar. With Turbo valved out for 1 minute, CVJ = 250 ubar. |
| 1340 | Stop pumping CVJ, close valve and remove hose. Remove all three sets of main bath bolts, then lower MB into pit. |
| 1400 | Erect clean tent at bottom of fridge. |
analysis note:
- tried the same calibration and noise width determination technique on Run68 data that I've used for Run75.
- first observation: saturation is much weaker with the -125V data with S101 than with S104. Linearizing OF wrt INT seems hardly necessary
- noise width = 8.3 eVee. So we definitely seem to be doing better with S104.