| 1145 | Status: IVC is evacuated with turbo pumping on it. IVC pumping pressure = 5.4e-6 mbar, isolate from pump, IVC pressure = 7.4e-4 mbar. LN Trap 1 is evacuated, Trap 2 assumed to still have some residual mixture (will clean this with the rest of the mixture). |
| 1200 | Pump out main bath with 1KPot Pump. Pump is a little whiny but seems to pump the bath out fine. |
| 1220 | Leak detector on IVC, background is 1.2 pbarL/s. |
| 1225 | Fill main bath with He gas to 100 mbar overpressure. After a few minutes LD signal increases only a little, to 2 pbarL/s. |
| 1230 | Pump out 1KPot, close 1KPot speedivalve, turn off 1KPot pump. |
| 1450 | Fill LN2 cold trap Dewar |
| 1455 | Let 4.6 mbar He exchange gas into IVC |
| 1510 | Room temperature electrical checkout. All looks good. |
| 1515 | Begin LN2 transfer. Sorb = 249.9 K, MC(Cernox) = 298.5 K (as read on LabVIEW vi) |
| 1545 | MC has dropped to 276 K. IVC has dropped to 3.4 mbar. |
| 1555 | Turn on circulation pump. Pump fridge contents and Trap 2 contents to dump. G2 reads 789 mbar. Barometric P = 29.99 “Hg so corrected dump pressure = 791 mbar. |
| 1556 | Begin cryocleaning mixture through Trap 2. |
| 1615 | MC = 196 K |
| 1740 | MC = 109 K. IVC = 1.6 mbar. Sorb = 127 K. Cease LN2 transfer. Attach ping pong ball. |