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MIF (ITF Control)
masayuki.nakano - 4:06 Wednesday 05 February 2020 (12790) Print this report
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[New Doctors, T/Nakano]

The best sensitivity was recorded, and it was 94 kpc. (The attached figure shows 82 kpc. I missed to take screenshot...)

  • The TML oplev loop was disabled. This improved the sesnitivity from 10 Hz to 30 Hz as reported by Yamada-kun.
  • The alignment affects the sensitivity. The best sensitivity was recorded just after the alignment, and it got worse after ~10 min.
  • 9 dB of whitening gain of the OMC DC signal was engaged. The second figure shows better noise above 1 kHz.
  • OMC dither amplitude was decreased to 666 from 2000, and the servo gain was increased by factor of 3.

http://klog.icrr.u-tokyo.ac.jp/osl/uploads/12790_20200204200819_screenshotfrom20200205015949.png

Images attached to this report
Comments to this report:
takashi.uchiyama - 4:42 Wednesday 05 February 2020 (12791) Print this report
Good job.

Thank you very much.
tomohiro.yamada - 11:48 Wednesday 05 February 2020 (12800) Print this report

Sugoi

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