Reports 1-1 of 1 Clear search Modify search
VIS (PRM)
naoatsu.hirata - 17:27 Tuesday 27 February 2024 (28694) Print this report
Comment to Recovery of PRM suspension (28380)

[Hirata, Takahashi-san, Dan Chen-san, Ikeda-san]

We assembled PRM IM OSEM holders which were modified at Mitaka, and adjusted OSEM position. All OSEM flags are not touching.

  • We assembled OSEM holders and OSEM with IMR.
  • Payload part were released and checked tilt Oplev. Oplev was not on the QPD. It was shifted Yaw direction, and little bit Pitch direction. We adjusted it to "0".
  • After recovering tilt Oplev, we checked OSEM position and adjusted again.
  • Almost all OSEM signals were out of range. So we adjusted them. Target was 6000 counts.
  • We checked tilt Oplev and OSEM position again. And adjusted bad one again. It looks all OSEM flags are not touching.
  • We checked earthquake stops, and closed the chamber side door.

After this work, Takahashi-san talked with Ushiba-san. And we realized BF and SF LVDT position was far from the set point. So, Takahashi-san did off-loading.(It will report later.)

Images attached to this comment
Search Help
×

Warning

×