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2011/09/27

1239 IVC P=0.4mbar, MC X12004 = 294.7K. Fill IVC with N2 to 860mbar.
1242 Pump N2 out.
1544 Spray He gas around the fridge, No gross leak found at BG 0.9e-6cc/s.
1545 Stop pumping mixture out of fridge.
1552 Introduce mixture into fridge from both ends.
1555 No gross leak found from circulation line to IVC at BG 0.95-6cc/s. Pump mixture out of the fridge from both ends.
1609 Spray He around the joints of the fridge again. No gross leak found at BG 1.0e-6cc/s.
1614 Introduce He gas into the 1K pot, no gross leak found at BG 1.0e-6cc/s.