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MIF (General)
takaaki.yokozawa - 4:44 Thursday 19 September 2019 (10600) Print this report
Morning silent run 190919

Xarm cavity with feed-forward.

Set strainmeter feed forward at 04:53.

One memo : We must turn off the feed forward after finish this run!!

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takaaki.yokozawa - 6:01 Thursday 19 September 2019 (10601) Print this report

Finish run at 6:00 am

Memo : There are some sensor correction using seismometers and there is asymmetry between IX and EX in the sensor correction of bottom filter.

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yoshinori.fujii - 6:10 Thursday 19 September 2019 (10602) Print this report

FYI, just a memo about the configuration of IP loops during the run.

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kouseki.miyo - 7:02 Thursday 19 September 2019 (10603) Print this report
I think this asymmetry cause the coupling from the common ground motion to the differential arm cavity motion because of bad CMRR.
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