2012/06/01
| 0945 | Filled LN2 cold trap. |
|---|---|
| 1140 | Did leak check with helium spray test. Background rate: 2.2E-9 mbar l/s. After leak checking lower flange: 2.36E-9 mbar l/s. No gross leak. |
| 1600 | Pumped and flushed main bath. |
| Evacuated 1 K pot. | |
| Filled IVC with 4.6 mbar of N2 exchange gas. | |
| 1620 | Begin LN2 transfer |
| 1900 | Stop nitrogen transfer. |
| 1920 | Fill N2 cold trap full. Close condenser line speedivalve and gate valve. Start cryocleaning mixture through nitrogen cold trap 2 (13.2%) |