| 1032 | Turned on leak checker. IVC pressure: 2.2E-4 mbar. |
| 1103 | Started lead checker. IVC pressure: 2.2E-4 mbar. |
| 1110 | Opened leak checker to IVC. Isolated turbo pump. |
| | IVC pressure: 4.0E-3 mbar. Background leak rate: 3.7E-9 mbarL/s. |
| 1115 | Small leak found in flange closest to T-junction. Leak rate: 5.2E-9 mbarL/s. |
| 1119 | Rechecked flange closest to T-junction. Small leak still present. |
| | Background rate: 3.5E-9 mbarL/s. Leak rate: 9.0E-9 mbarL/s. |
| 1131 | Tightened flange closest to T-junction. Background rate rose to 4.8E-9 mbarL/s. |
| 1134 | Leak found in flange in T closest to the E-box. Leak rate: 2.2E-7 mbarL/s. |
| 1135 | Recheck same flange. Background rate: 2.3E-8 mbar/s. Leak rate: 2.6E-7 mbarL/s. |
| 1144 | New background leak rate: 8.8E-9 mbarL/s. |
| 1125 | Slow rise in leak rate seen with double flange. Leak rate: 9.9E-9 mbarL/s. |
| 1149 | New background leak rate: 1.1E-8 mbarL/s. |
| 1150 | Small possible leak on flange between E-box and T. (Left of T). Leak rate: 1.7E-8 mbarL/s. |
| 1200 | Finished leak check. Final background leak rate: 1.7E-8 mbarL/s. |
| 1330 | Filled the IVC with nitrogen fill gas. |
| 1400 | Tried to clean and adjust the flange on the T-junction closest to the E-box (the one that had the biggest leak this morning). Adjusted both the flange between the T-junction and the E-box, and the flange closest to the T-junction in the process. There seems to be a gap in all these flanges on the side opposite the fastener. However, all these flanges look the same. |
| 1530 | Began evacuating the IVC. |
| | Closed the check valve and opened the scroll pump to the IVC. |
| 1550 | Pressure dropped below 5E-2 mbar in the IVC. Opened the turbo pump and closed the scroll pump. |
| 1830 | Conducted an electrical check on striplines 19 and 27. Everything looked fine. QET lines, QET return lines, Qi Bias, and Qo bias were all reading around 2ns conductance. However, this was seen on both striplies, so perhaps this is an effect of the breakout box rather than the striplines. |
| 1930 | Performed a leak check and discovered a gross leak, background level of 4.4e-9 jumped to 6e-7 within a few seconds of the last connection from the EBOX to the T-junction leading to the IVC and check valve being exposed to syringe test. |
| 2120 | Reconnected all flanges on the T-junction. |
| 2210 | Pressure in the IVC: 5.4e-4 |