| 1430 | Start pumping out N2 exchange gas. |
| 1445 | Filled N2 cold trap. |
| 1452 | Electrical check @ 77K performed. FET Tsense/Heater(-) no longer open on DIB 2. |
| 1529 | First throughput test yielded 85 mbar/min. |
| 1544 | Second throughput test: 115 mbar/min. |
| 1558 | Third throughput test: 63 mbar/min. |
| 1609 | Currently still pumping out IVC - pressure has maintained around 4.6E-5 mbar for 1.5 hours. |
| 1740 | Begin blowing out LN2. Background leak: 5.3E-9 mbar l/s |
| 1833 | After LN2 was blown out, a leak was detected (using the Dept leak checker). The bottom flange is suspect. Leak is ~ 6E-5 mbar l/s. |
| 1844 | To further diagnose if what we saw was a leak, the IVC was isolated from the leak detector. The He leak rate dropped extremely quickly to <10E-8 mbar l/s. The leak in the bottom flange is confirmed. |