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2023/03/22 (Wednesday)

Previous Day

* Lab in-personnel: Himangshu

Set up clean tent yesterday. IVC open. Mixture in dump. Warm LN2 Trap 1 clean. Clean tent erected at bottom of fridge. Deinstallation started, Squets, 4K , 600mK, 100mK stages removed yesterday.
1400 Unplug Tower thermometer. NOTE: It seemed to be hanging and not attached to any of the cans. This might be done yesterday during deinstallation till the 100mK stage but not confirmed.
1410 Finish removing tower: Remove all but 4 screws attaching tower to MC can, and remove spool cap from bottom of tower
1500 Attach fridge stand ring to IVC (careful not to scratch bottom surface with screws), raise fridge stand to support tower and insert threaded rods.

Remove remaining tower adapter screws so tower is supported by fridge stand. Place scissor jack on red drill case and extend it to support tower stand

1530 Detach threaded rods from fridge stand. Lower tower with scissor jack being careful not to snag wires, 600mK rod, striplines. Collapse scissor jack lowering tower as far as the threaded rods can reach, then reattach threaded rods to support tower. Then remove red case and extend jack to support stand. Remove threaded rods.

1600 Continue lowering tower till jack is at minimum height. Detach ring from IVC, lower ring to bottom of tower stand rods (careful to lower it level, so it doesn't get stuck on rods). Pull tower stand on scissor jack out from beneath fridge, pulling rods apart enough to clear IVC. Double-bag tower on tower stand and carry stand with tower into cleanroom anteroom.
1616 Unscrew threaded rods from tower and Kapton tapes to check the source mover position

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