2018/01/12 (Friday)
| Status: warming up. All mixture in dump, fridge isolated. LN2 traps warm and pumped out. 1K Pot needle valve open. Around 1 bar @300 K N2 in IVC. | |
| 1120 | MC(Cernox) = 267 K. |
| 1210 | Check contents of LHe trap by opening V1 with Condenser speedivalve closed. Since I pumped it out at 30 K last Friday, this will show any air that was trapped there. LHe trap = 8.4 mbar of contaminant gas. Pump this out with scroll pump. |
| 1350 | Open both fridge valves to see if any more gas comes out. Still (P1) = 0.3 mbar of contaminant gas. Condenser (G1) = 2.5 mbar of contaminants (but not sure, this may be stuff still coming out of the LHe trap) |
| 1445 | Finish pumping fridge out on both sides with scroll pump. |