Today's activities:
- Relay tube was vented with Nitrogen; it was also taken off (mitre part stayed, the others came off in 1 single piece)
- RGA scans have been made at HAM7 and HAM6 - they were satisfactory, details later; the OMC RGA is leaking, so no scan there - leak hunting later the week, or next week
- All the RGAs, Cold Cathode gauges, Ion pumps, NEG-pumps were valved out in the volumes to be vented
- The corner was vented first. At the start of the vent, the purge air's dew point was at ~-52 deg C, with 0 particles. The vent was carried out from 2 pm to 6 pm
- HAM7 was vented after. The purge air's dew point was at ~-42 deg C, with 0 particles. This vent was carried out during the corner vent, taken ~1.5 hours
- After the corner vent, GV5 AIP railed: this suggests a leak from the annulus system to the main volume - further investigation is required (history: in the last 3 years this AIP railed 6 times). This Annulus volume is being pumped with an aux cart now during this vent