| 0250 | Fed Cricket 5 pellets. |
| 0510 | Finished measurements. Helium liquid level 0.08%. Stop 1 K pot, pump mixture out of mixing chamber, turn on mixing chamber heater (power 20 mW), and start warming up. |
| 0525 | Reset DCRCs. |
| 0540 | Realised I've forgotten to take charge breakdown measurements between charge channels on same side. Helium liquid level is 0.04%, mixing chamber temperature is >7 K, and dump pressure is 490 mbar. There probably isn't enough helium to cool back down again, but it's worth a shot. |
| | Turn off mixing chamber heater, stop pumping mixture out of fridge and restart 1 K pot. |
| 0640 | Mixing chamber temperature 2.6 K. Helium liquid level -1.0%, but helium level meter lies a little above 1 K pot intake valve. |
| | Isolate dump and start circulation manually. |
| 1010 | Had enough helium to reach >200 mK, but temperature has been rising over last hour or so as helium has run out and 1 K pot has warmed. Mixing chamber temperature currently a little shy of 700 mK. Due to higher base temperature, it is not possible to see phonon pulses. SQUIDs locked regardless. |
| | Charge beakdown measurements for Side 1 indicate that charge breakdown occurs when Qi = +4 V & Qo = 0 V. This is no different from what has been observed at +/-4 V bias, where Qi showed signs of charge breadown. When Qi = 0 V & Qo = +12 V, Qo trace begins to show evidence of charge breakdown. There is no evidence of charge breakdown in the opposite polarity (ie. when Qi = -12 V & Qo = 0 V, or when Qi = 0 V & Qo = -12 V). |
| | For Side 2, Qi shows signs of breakdown when Qi = +4.5 V & Qo = 0 V, and Qi = -8 V & Qo = 0 V. Qo shows signs of breakdown when Qi = 0 V & Qo = +4.5 V, and Qi = 0 V & Qo = -8 V. From previous measurements, Qi trace was all over the place at -/+4 V bias. Cannot seem to repeat this behaviour. |
| 1050 | Mixing chamber temperature around 930 mK. Stop 1 K pot, turn on mixing chamber heater (20 mW) and pump mixture into dump. Start warm up procedure. |
| 1230 | Dewar lowered, fans started, mixing chamber temperature 25.3 K and rising. |
| 1235 | Fed Cricket 3 pellets. |
| 1330 | Turn off mixing chamber heater. |
| 1400 | Mixing chamber temperature 92 K. Add 5.4 mbar of N2 exchange gas to IVC in an effort to aid warm up. |
| | Run Windows Update on DAQ machine. |
| 1530 | Mixing chamber temperature 174 K. |
| | Start evacuating helium transfer stick's vacuum jacket. |