2015/02/16
| 1530 | Mixing chamber temperature at 214K. G1: 0mbar, P1: 36ubar, G2: 4.6mbar. Background IVC leak rate of 3.7E-9 mbarL/s. Open IVC, rate spikes to ~1E-3 mbarL/s. Drops to stable 1.2E-7 mbarL/s. |
|---|---|
| 1600 | Commence LN2 transfer. Add 4.6mbar of He exchange gas to IVC. |
| 1730 | Mixing chamber temperature 126K. LN2 transfer completed with resistance reading of 1.33kΩ. G1: 0mbar, P1: 55ubar, G2: 1.1mbar. |
| 2020 | Mixing chamber temperature 79.2 K and falling slowly. Start pumping exchange gas out of IVC. |