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VIS (BS)
ryutaro.takahashi - 22:49 Tuesday 09 April 2024 (29156) Print this report
Visual inspection of BS payload

[Takahashi, Ikeda, Washimi]

We performed a visual inspection of the BS payload. We could access the payload from only the SR side (-Y). We could not see #6 OSEM. Though some flaps for the OSEMs were rotated by 20~40°, the angle would be within the permissible range. The gaps in the EQ stoppers seem to be moderate.

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Comments to this report:
tomotada.akutsu - 0:09 Saturday 13 April 2024 (29218) Print this report

I can garantee up to +/-20 deg roll of the OSEM flag (see this paper), but 40 deg roll might not be within the garanteed range...

ryutaro.takahashi - 13:38 Thursday 02 May 2024 (29379) Print this report

[Ikeda, Takahashi]

We checked the OSEMs again. We took pictures of the OSEMs with a 360º camera (THETA). The flap for the OSEM#1, #4, and #5 were rotated by 40~50°.

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ryutaro.takahashi - 21:59 Wednesday 29 May 2024 (29682) Print this report

I put the pictures for the EQ stops in the KAGRA Dropbox.

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