2013/09/28
| 1630 | Fill N2 cold trap full. |
|---|---|
| 1700 | Mixing chamber temperature 84.7 K. IVC pressure 8.6E-6 mbar. Fill IVC with 0.074 mbar He-4 exchange gas. Overpressurise main bath with He-4 gas. Commence first helium transfer (slow). |
| 2315 | Mixing chamber temperature 7.5 K. Start pumping He-4 exchange gas out of IVC. |