| 930 | Filled LN2 cold trap. |
| | Fed Cricket 3 pellets. |
| 1100 | Started LHe transfer. 3.6% |
| 1145 | End LHe transfer (91.6%). |
| 1213 | The mixing chamber temperature: 95.8 mK. Still thermometer: 4.37 kΩ and cold plate thermometer: 13.3 kΩ. Pressures in P1, G1 & G2 are 0.12 mbar, 79 mbar and 95 mbar respectively. The 1 K pot temperature is 1.79 K. |
| 1220 | Turn on still heater: 1 mW. |
| 1255 | The mixing chamber temperature: 96.8 mK. Still thermometer: 4.34 kΩ and cold plate thermometer: 13.3 kΩ. Pressures in P1, G1 & G2 are 0.11 mbar, 82 mbar and 98 mbar respectively. The 1 K pot temperature is 1.79 K. |
| 1304 | Turn on still heater: 2 mW. |
| 1348 | The mixing chamber temperature: 98.2 mK. Still thermometer: 4.33 kΩ and cold plate thermometer: 13.1 kΩ. Pressures in P1, G1 & G2 are 0.12 mbar, 88 mbar and 104 mbar respectively. The 1 K pot temperature is 1.79 K. |
| 1350 | Turn off still heater. Close V6 on IGH, interrupting circulation. |
| 1400 | Close V13A on IGH. There is 327 mbar of mixture left in the dump. This means we drained almost 70 mbar out of the dump last night. We could try to to condense 325 mbar of mixture instead of 300 mbar, but there isn't much room for error. Perhaps level of mixture in still is fine. |
| | Warm up to 4.2 K for leak checking. Open valve V6 on IGH to remove mixture. |
| 1430 | Stop 1 K pot. |
| 1510 | Turn on mixing chamber heater to 10.0 mW and open valve V5 on IGH in an effort to recover mixture faster. |
| 1755 | Recovered 698 mbar of mixture. Start 1 K pot; temperature 1.77 K. Turn off mixing chamber heater. |
| 1810 | Start condensing mixture manually through nitrogen cold trap 1. |
| 1820 | Seal off dump. Pressure of mixture in dump 364 mbar. |
| 1825 | Valve 12A on IGH fully open. Mixing chamber temperature 8.4 K and dropping. Pressures in G1 & G2 look fine, as do pressure and temperature of 1 K pot. Will leave to cool for a few hours. |
| 1826 | Fed Cricket 4 pellets. |
| 2120 | Made a slight mistake and started automatic condensation procedure instead of circulation. Aborted procedure, closed valve V13A and opened valves V5 & V9 on IGH to extract mixture from fridge to dump. Mixing chamber temperature was 3 K at start of procedure. It has dropped to 2.2 K. It's possible that a greater concentration of He-3 than He-4 has been extracted, but it's probably fine. This can be checked with single-shot once mixture is circulating inside fridge if required. |
| | Restart condensation. |
| 2125 | Interrupt condensation. Start circulation. |