Reports until 11:18, Friday 28 March 2025
H1 PSL
jason.oberling@LIGO.ORG - posted 11:18, Friday 28 March 2025 (83616)
PSL FSS RefCav Remote Beam Alignment Tweak

I took advantage of the recent earthquake to tweak the beam alignment into the FSS RefCav from the Control Room to improve the transmission, which had been dropping for the last several days.  With the IMC unlocked the starting RefCav TPD was ~0.660 V, and after the alignment tweak (IMC still unlocked) the TPD is ~0.833 V.