R&D (FilterCavity)
NaokiAritomi - 17:55, Monday 18 April 2022 (2932)
FC recovery trial

[Aritomi, Michael]

After opening the gate valves between input/end and arm, we tried to recover FC. We centered the PR reference and first target, but we could see only the scattered light at second target... We checked that the green beam is roughly center of the gate valve between BS/input with the PR reference.

Note: After the gate valve between BS/input is used as PR reference, don't forget to open the gate valve.