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Reports until 16:03, Wednesday 06 March 2024
LHO VE
janos.csizmazia@LIGO.ORG - posted 16:03, Wednesday 06 March 2024 - last comment - 08:54, Thursday 07 March 2024(76168)
3-6 vent vacuum diary
The pressures:
HAM7: ~2.9E-7 Torr
HAM8: ~3.3E-7 Torr
Corner: ~4.9E-8 Torr
EX: ~5.4E-9 Torr

Today's activities:
- The X-manifold turbo-station water lines have been updated - now the controller and pump lines are separated

- HAM8 RGA scan is done, details in the comments
- HAM8 IP was valved in
- HAM7 Annulus Ion Pump has railed; it is caused supposedly by a leaky plug on the septum plate, or just the AIP controller - either way, it will be found out soon
- Relay tube - HAM7 - HAM8 further schedule: This volume will be valved in to the main volume around the end of the week - RV1; FCV1; FCV2; FCV3; FCV4; FCV8; FCV9 will be opened; preferably after the HAM7 AIP issue is solved
Comments related to this report
jordan.vanosky@LIGO.ORG - 08:54, Thursday 07 March 2024 (76178)

HAM8 scans collected at T240018

RGA tree was baked at 150C for 5 days following the replacement of leaking calibrated leak with a blank.

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