| 1010 | After pumping mixing chamber and cold traps overnight, G2=624.0 mbar and G1=0.01 mbar. Close V6 and prepare to clean cold traps. |
| 1025 | Close gate valve and all valves on IGH before opening 11A, 11B, 7, 2A, 5A to begin cleaning LN2 coldtraps. Remove coldtraps from dewar and all to reach room temperature. |
| 1115 | First round cold trap cleaning finished. |
| 1210 | Second round of cold trap cleaning finished. |
| 1340 | Isolate cold traps, close all valves on IGH. G2=625.2 mbar. |
| 1400 | Filled LN2 cold trap full. |
| 1410 | Began cryocleaning mixture. |
| 1414 | Fed Fishy McGee. |
| 1510 | Finish cryocleaning mixture. Pump mixture to dump. |
| 1530 | Begin leak checking IVC. Background leak rate of 8.3E-10 mbar*L/s. |
| 1545 | G2 at 619.7mbar, G1 at 0.5mbar, P1 at 12ubar. Commence throughput test. |
| 1620 | With G2 at 623.5 mbar throughput test performed with a resulting rate of 6 mbar/min. This is of course awful when compared to the ideal ~45 mbar/min, but typical of recent throughput tests performed on our fridge. Leak rate of 7.8E-10 mbar*L/s during throughput test, suggesting no leak in mixing chamber lines. Commence pumping mixture to dump to perform throughput test again to confirm results. |
| 1700 | With G2 at 618.6 mbar, G1 at 0.3 mbar and P1 at 9 ubar, throughput test performed with resulting rate of slightly less than 7 mbar/min. Background leak rate of 7.4E-10 mbar*L/s, leak rate remained constant throughout test except for a spike to 7.6E-10 mbar*L/s and back down around when V1 was opened. This does not seem to be a significant indication of a leak. Switch back to pumping on IVC with turbopump. Commence pumping mixture back to dump. |
| 1715 | G2 at 618.8 mbar, G1 at 0.5 mbar, P1 at 12 ubar. Close gate valve and condenser line Speedivalve. |
| 1725 | Commence cryocleaning through cold trap 2. |