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VIS (SRM)

takafumi.ushiba - 15:07 Tuesday 23 January 2024 (28373)

Health check of SRM

I checked the SRM TFs for health check.
Figure 1 - 28 show the TF measurement results.
Followings are what I noticed from the measurements.

1. Q value of the lowest resonance of GAS filterseems slightly higher than before.
2. Overall gain of all IM-stage DoFs are slightly smaller than before.
3. IMH1 to IMH1 and IMH3 to IMH3 gains became small while IMH2 to IMH2 gain seems almost same.
4. Gains from IMV1 to IMV1, IMV2 to IMV2, and IMV3 to IMV3 became small.

Images attached to this report

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Comments to this report:

ryutaro.takahashi - 22:29 Monday 20 May 2024 (29584)

I checked the TFs measured in air. They are consistent with the reference (measurement before O4a) and look healthy.

Images attached to this comment