2014/08/26
| 1100 | Fill LN2 cold trap full. |
|---|---|
| 1345 | Open valve V12B on IGH. Pressure in G1 increased a little bit from 0.5 mbar to 1.3 mbar. Would seem to indicate that there is no leak, but this is far from conclusive. Close valve V12B after around a minute. |
| 1630 | Turn on leak checker to IGH through vent port,leak rate ~e-6 mbar*L/s. Leak rate periodically spiked an order of magnitude. Isolate fridge (close gate valve and condenser line speedivalve.) Hook up scroll pump through vent port of pump on cold traps and lines leading to fridge. |