| 1310 | MC X12004 = 78.56K. Start pumping out N2 exchange gas. |
| 1444 | IVC P =4e-6mbar. |
| 1640 | Fill N2 cold trap full. |
| 1640 | Start blowing liquid nitrogen out of main bath. |
| 1725 | Interrupt cryocleaning. Pump mixture into dump in preparation for throughput test. |
| 1825 | G3 pressure drops. Liquid nitrogen has been removed from main bath. Close off helium gas supply. |
| | Throughput test yields 12 mbar/min. Pump mixture back into dump for another attempt. |
| 1850 | Detector electrical checks OK. IVC P=1.2e-6mbar. |
| 1925 | Second attempt at throughput test yields 8 mbar/min. Third attempt yields 16 mbar/min. Looks like mixture is still dirty. Pump mixture into dump in preparation for cryocleaning. |
| | Perhaps cold trap 2 is dirty or overnight flow rate was too high. Cryoclean mixture through nitrogen cold trap 1. Valve 6 open 13.5%. |
| 1940 | Flow stagnated. Open valve 6 14.1%. |
| 2045 | Interrupt cryocleaning. Pump mixture into dump in preparation for throughput test. |
| 2130 | Conduct two throughput tests: first yields 52 mbar/min; and second yields 33 mbar/min. |
| 2200 | He exchange gas 0.1mbar. He gas pressure 1psi. Start transfer liquid helium. |
| 2300 | Pump out He-4 exchange gas at tower temperature of 15 K. Pressure in IVC falls rapidly: no sign of a leak. |
| 2307 | MC X12004 starts to plateau at 7.2K. |
| 2316 | MC X12004 should have been reached 4K based on the extrapolation of the T vs time curve. In crease He gas pressure to 2psi to speed up the transfer. |
| 2317 | He level 0.9%. |
| 2325 | Increase He gas pressure to 2.5 psi. |
| 2355 | Stop LHe transfer. Helium liquid level 91.9%. |