Reports until 16:30, Friday 23 February 2024
LHO VE
janos.csizmazia@LIGO.ORG - posted 16:30, Friday 23 February 2024 (75949)
2-23 vent vacuum diary
Today's activities:
- HAM7 pumpdown status: ~7.7E-7 Torr
- Corner pumpdown: ~6E-7 Torr, ~73 hours after the HV pumping started
- EX pumpdown status: 2.9E-8 Torr. The GV will remain closed during FAC works (1-2 weeks)
- At the EX RGA the bakeout temperature has been ramped up to 150 deg C; in the upcoming days the HAM7 and HAM8 RGAs will also be baked, as per WP #11713
- The pumping cart was disconnected from the GV5 annulus system
- The relay tube has been installed, see attached photo
- The relay tube is being pumped, at the moment is already at 2.4E-6
- The relay tube was leak checked, and everything is OK
Images attached to this report