| 0940 | With turbo pump reading 4.6e-3 mbar (no idea of actual value) after pumping out overnight, isolate IVC. Fridge temperature at 8.2 K. Mixture flow has ceased; fill LN2 cold trap full and commence pumping mixture to the dump. |
| 1015 | Start 1K Pot (note: He4 pump recovery has not yet been set up, so all output is exhaust). G1 not falling below 4.3 mbar. Commence cryocleaning through cold trap 2 again. |
| 1240 | Fill LN2 cold full. Feed fish. |
| 1330 | With G1=2.7 mbar, P1=10 ubar adn G2=661.3 mbar, close all valves on main IGH. Unsure why mixture amount has risen since last pumped to dump. Possible leak, proceeding with caution. |
| 1400 | With 663 mbar of mixture in dump, start condensing. Goal is to leave 313 mbar in dump and have 350 mbar mixture in circulation. |
| 1500 | G2=313 mbar, close 13A to confirm value. When V9 is closed (but before 13A reopened) we noticed that G1 began to rise quickly. Leave to monitor. |
| 1511 | After 11 minutes G2 has risen to 455 mbar. Decide to close 12A completely and open 13A. Proceed with caution. |
| 1530 | V12A open all the way. |
| 1615 | Despite V12A open completely, G1 and G2 fail to fall to the desired ~60 mbar. Instead they both have oscillated between ~80 to ~140 mbar, with G1 always roughly 10 mbar above G2. We will continue to wait and see if G1 and G2 values settle or reach a stable point. Currently G1=109 mbar, and G2=98 mbar. |
| 1640 | G1 and G2 have continued oscillating. Fill LN2 cold trap full. |
| 1655 | Decide to test 1K Pot temperature effects on G1 and G2. Currently G1=127.6 mbar, G2=115.4 mbar and 1K Pot temperature T=1.746 K. Closed 1K Pot till temperature reached 1.648 K. |
| 1705 | 1K Pot stabilized at 1.661 K, G1=100.6 mbar, G2= 93.0 mbar and dropping. |
| 1710 | G1 and G2 stagnated. Close 1K Pot a bit more, till temperature settles at 1.624 K. |
| 1715 | Again, close 1K Pot slightly till temperature is 1.52 K. G1=92 mbar, G2=86 mbar. |
| 1720 | 1K Pot settled to 1.549 K, G1=86.5 mbar, G2=79.1 mbar. |
| 1725 | Again close 1K Pot slightly till temperature is at 1.488 K. G1=79.6 mbar, G2=74.7 mbar. |
| 1730 | 1K Pot settled at temperature 1.498 K, G1=72.8, G2=65.5. |
| 1735 | 1K Pot has reached 1.492 K, G1 has risen to 80.5 mbar, and G2 has risen to 71.9 mbar. To avoid overloading the 1K Pot we decide to stop adjusting needle valve. Instead we proceed with circulation procedure. Close V3 and open V6 to 11%. G1 and G2 both quickly drop to ~60 mbar. |
| 1755 | V6 has been opened completely, G1=135 mbar and G2= 145 mbar. Mixing chamber temperature at 950 mK and dropping. |
| 1815 | Open 1K Pot needle valve slightly till it reaches temperature of 1.521 K. |
| 1845 | Mixing chamber temperature won't fall below 900 mK. G1=107.8 mbar and G2=113 mbar. |
| 1950 | Mixing chamber temperature at 981 mK, G1=113 mbar, G2=118 mbar, P1=.22 mbar, P2=6 mbar, and 1K Pot temperature of 1.557 K. |