Reports until 18:23, Thursday 22 February 2024
LHO VE
janos.csizmazia@LIGO.ORG - posted 18:23, Thursday 22 February 2024 (75936)
2-22 vent vacuum diary
Today's activities:
- HAM7 pumpdown status: ~8.5E-7 Torr
- Corner pumpdown: ~7.4E-7 Torr, ~51 hours after the HV pumping started
- EX pumpdown status: 3E-8 Torr. The GV will remain closed during FAC works (1-2 weeks)
- At the EX RGA the bakeout temperature is ramping up; in the upcoming days the HAM7 and HAM8 RGAs will also be baked, as per WP #11713
- The inner annulus system of GV5 was valved in to the main annulus system
- The hardware was prepared for the newest version Relay Tube's installation, which will be done tomorrow