| 0045 | Fully open valve V12A on IGH: manual condensation procedure complete; 332 mbar of mixture left in dump (350 mbar of mixture in fridge). Mixing chamber temperature 7.7 K and falling. |
| 0155 | Mixing chamber temperature 2.16 K. Commence manual circulation procedure. |
| 0305 | Full open valve V6 on IGH: manual circulation procedure complete. Wait for mixing chamber to reach base temperature. |
| 1100 | Filled LN2 cold trap full. |
| 1630 | Mixing chamber temperature 64.9 mK. Perform single-shot test for 90 seconds. Mixing chamber temperature reached 64.8 mK when single-shot test stopped. |
| 1730 | Mixing chamber temperature appears to have stabilised at 65.3 mK. Attempt to extract more He-3 by running single-shot test for 5 minutes. Mixing chamber temperature reached 63.6 mK when single-shot test stopped. |
| 1840 | Mixing chamber temperature appears to have stabilised at 65.3 mK. Perhaps we need to run single-shot test for a longer period of time to extract more He-3. The trouble is that when the dump is opened to provide a place for the extracted He-3 to reside, its contents make their way into the He-3 pump's exhaust. As a result, we may not actually be extracting as much He-3 as we believe. Commence single-shot test for half-an-hour. |
| 1910 | Cease single-shot test. Mixing chamber temperature reached a low of 57.6 mK. |
| 2000 | Mixing chamber temperature appears to have stabilised at 65.4 mK. It's all rather disappointing. Give up and commence single-shot test to see if we have extracted any He-3. |
| 2100 | Single-shot test indicates that we have extracted He-3 as there is no evidence of a double-dip. It may imply that our still is running dry and/or the phase boundary lies in the mixing chamber. |
| | Cease single-shot test and start recovering the mixture by pumping on both sides of the fridge. Turn off still heater. |
| 2120 | Stop 1 K pot. |
| 2125 | Commence helium transfer. Helium liquid level 20.4%. |
| 2135 | Turn on mixing chamber heater (power 10 mW) to aid mixture recovery. |