2020/02/06 (Thursday)
| 0855 | Start cryocleaning mixture through LN2 Cold Trap 1, V6 = 12.0% |
|---|---|
| 0900 | Increase V6 → 12.4% to restart flow |
| 0905 | Increase V6 → 12.6% to restart flow |
| 0950 | Increase V6 → 12.8% to restart flow |
| 0955 | Stop cleaning through Trap 1 after 60 min. G2 flow pressure was 575-825 mbar. Pump mixture to dump. Removed 7.0 mbar. |
| 1130 | Start cryocleaning mixture through LN2 Cold Trap 2, V6 = 12.8% |
| 1140 | Increase V6 → 13.0% to restart flow |
| 1145 | Increase V6 → 13.1% to speed up flow |
| 1235 | Stop cleaning through Trap 2 after 65 min. G2 flow pressure was 570-685 mbar. Pump mixture to dump. Removed 5.0 mbar. |
| 1315 | Check contents of mostly warm LN2 Trap 1: 7.0 mbar. Pump out with scroll pump. |
| 1335 | Start cryocleaning mixture through LN2 Cold Trap 1, V6 = 12.7% |
| 1340 | Increase V6 → 13.0% to restart flow |
| 1455 | Stop cleaning through Trap 1 after 80 min. G2 flow pressure was 610-970 mbar. Pump mixture to dump. Removed 4.5 mbar. |
| 1300 | Drill some holes in the source mover plate to mount LEDs to |
|---|---|
| NOTE LED wires should go to tower faces corresponding to DIB1 and DIB4 | |
| 1400 | Replace spool (tower connector) on tower with the longest one (the CDMSII one). Several screws stripped trying to remove them, had to use the large pliers. |
| 1420 | Reattach the rectangular guide bar to the source mover motor plate. Had to remove motor from plate temporarily to do this. |
| 1455 | Remove G132 from its housing. Place it in a plastic container with foam and wipes, Side1 down. Put in purge cabinet. |