keiko.kokeyama - 18:40, Wednesday 08 August 2018 (5746)
IMMT2 oplev was re-installed, coils don't work
[Ohishi & Kokeyama]

The IMMT2 oplev was installed again.

During the work, Ohishi-san noticed that the magnets were not centered on the coils. The picomotor screw YAW was turned until they were recentered again. We do not know why they drifted. Then we adjusted the oplev source, and also the oplev folding mirror in the chamber. Oplev beam is now centered on the QPD.

However, by looking with the oplev QPDs, the coils are not functioning. We will investigate the problem.