Displaying report 1-1 of 1.
Reports until 18:51, Friday 01 March 2024
LHO VE
janos.csizmazia@LIGO.ORG - posted 18:51, Friday 01 March 2024 (76080)
3-1 vent vacuum diary
The pressures:
HAM7: ~4.55E-7 Torr
HAM8: ~1.1E-6 Torr
Corner: ~1.0E-7 Torr
EX: ~1.3E-8 Torr

Today's activities:
- EX RGA was done, and it was found satisfactory
- EX large ion pump (IP12) was valved in, and the pressure immediately fell to 1.3E-8 Torr from 2.2E-8
- EX further schedule: Turbo pump valve-out: 3-4; RGA scan #2: 3-4; GV20 open: 3-4

- The HAM8 RGA bakeout was ramped up, will be on throughout the weekend
- The HAM7 RGA bakeout was also ramped up, and similarly stays on throughout the weekend - the bake will be finished on Monday morning
- Corner & Filter cavity further schedule: Turbo pumps valve-out: 3-4; RGA scan #2: 3-4; GV5 & GV7 open: 3-4; HAM7 and HAM8 valve-in: ~3-6. Note: the bottleneck is the stabilization of the large ion-pumps. If that doesn't happen until 3-4, the opening of the GVs needs to be shifted later
- GV7 all metal valve was opened, the AIP was already able to take over the pumping
Displaying report 1-1 of 1.