| Status: | Tower installed, IVC turbopumping overnight |
| 0850 | Turn on leak detector |
| 0855 | IVC = 54 e-6mbar pumping, 7.4 e-3mbar with pump valved out (after waiting 5 minutes) |
| 0940 | Leak detector has rather high background even with valve closed, around 30 e-9mbarL/s. Shut down leak detector, will try restarting it. |
| 1230 | With background of 6.5e-7 mbarL/s, performed leak check on IVC and pump manifolds and saw no change. Closed off valves to IVC at top of fridge and saw leak rate fall to 5e-8 mbarL/s. Proceeding to raise dewar. |
| 1254 | Before raising the dewar, vacuum inside main bath and clear dewar o-ring and dewar edge with wipes and isopropanol. Clean o-ring off and apply some vacuum grease. Both the o-ring and the groove on the main bath were rather dirty. Continue raising dewar. |
| 1345 | Evacuate He gas lines and pump out main bath with scroll pump, with IVC background leak rate of 6.0E-7 mbarL/s. Isolate scroll pump and flush main bath with He gas. No change in leak rate during flushing. Isolate He gas line and main bath, and pump out 1K Pot with scroll pump. |
| 1355 | Switch back to pumping on IVC with turbo pump and isolate scroll pump. |
| 1405 | Remove He recovery tube from port on top of Main Bath and commence LN2 transfer. |
| 1410 | Add 4.6mbar of He exchange gas to IVC. |
| 1642 | Fridge temperature at 124 K and slowly dropping. |
| 1720 | Fridge temperature at 110 K and still dropping. |
| 1730 | Fridge temperature 105K - still dropping. Turn off LN2 feed so we don't put too much liquid into the dewar. |
| 1750 | Fridge temperature at 100K. |
| 1800 | Pump out exchange gas so we can do a leak check tomorrow during the LN2 blow out. |
| 1810 | Fridge temperature at 97K, still dropping. IVC pressure at 3.0E-5mbar and still dropping. |