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MIF (General)
takaaki.yokozawa - 8:36 Wednesday 20 May 2020 (14409) Print this report
PRFPMI Lock trial

[Yokozawa]

I tried to lock the PRFPMI today, but failed. I wrote the memo for lock trial.

1. SAL alignment worked (partially) well.

Xarm/Yarm IR lock with GR were succeeded, PRMI lock succeeded. But IR trans light(X~0.8, Y~0.8) and POP90I RF PD(~0.7) signal were slighly lower than reference.

2. Micro-seismic motion was large

3. We couldn't see the light in the AS gige camera and OMC QPD.

Comments to this report:
shinji.miyoki - 10:25 Wednesday 20 May 2020 (14410) Print this report


I guess OMMTs alignment were so shaked yesterday.

In addition to this, SR2 had troubles. So SR2 alignment should be healthy.

masayuki.nakano - 16:13 Wednesday 20 May 2020 (14411) Print this report

I aligned whole IFO again, and all value is within reasonable value (>0.9).

So far, nothing seems to have any problem, although the PRFPMI cannot be locked due to the violent ocean condition.

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