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2017/08/23 (Wednesday)

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Status Fridge at room temperature. Both LN2 traps warm and pumped out. Mixture in dump (LHe cold trap isolated at around 20 K). 1K Pot needle valve open. IVC filled with nitrogen. Turbo pumping on dewar jacket overnight.
0911 Turbo pump 3.0 μbar 30 nbar, cryostat vacuum jacket 460 μbar 460 nbar (must have been sleepy this morning)
1218 Turbo pump 22 nbar, cryostat vacuum jacket 460 nbar
1325 Turbo pump 22 nbar, close dewar jacket.
1540 Disconnect pumping station from dewar jacket, and reconnect to IVC (NOTE: LINE HASN'T BEEN PUMPED OUT!). Lower dewar. Put up and wipe down clean tent.
1544 Pump out line leading to IVC from pumping station with scroll pump, just to be safe. Once below 2e-9 mbar, isolate scroll pump, and turn off.

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