Differences between revisions 12 and 18 (spanning 6 versions)
⇤ ← Revision 12 as of 2020-03-09 04:22:08 →
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Editor: TakaakiYokozawa
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← Revision 18 as of 2020-03-09 04:27:31 → ⇥
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Editor: TakaakiYokozawa
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Deletions are marked like this. Additions are marked like this.
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== Hammering test == == - Hammering test ==
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=== '''Task list (Done)''' === === Task list (Done) ===
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  * Reported later, the main reason the vibration to the OMC legs for the optical table inside the vacuum   * Reported later, the main reason is the vibration to the OMC legs for the optical table inside the vacuum
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  *   * Reported later, the main reason is the vibration to the OMC legs for the optical table inside the vacuum
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  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=13105|klog13105]]
  * Now we didn't use the AS PD signals for interferometer control
  * There was possibility that the reflection light from AS table make dirty scattering light
  * Shadowed between the OMC viewport and AS table, but we couldn't see the clear noise reduction
  * Also, when we added vibration to the OMC viewport, we couldn't detect the noise increasing.
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== ・PEM injection == == - PEM injection ==

Memo for Commissioning break (Mar. 2020)

- Hammering test

Task list (Done)

  • Hammering test of the OMC chamber (Done 22nd Feb.)

    • klog13105

    • There is excess in the sensitivity between 100 Hz to 400 Hz
    • Reported later, the main reason is the vibration to the OMC legs for the optical table inside the vacuum
  • Hammering test AS table (Done 22nd Feb.)

    • klog13105

    • Reported later, the main reason is the vibration to the OMC legs for the optical table inside the vacuum
  • Reflection light check (Done 22nd Feb.)

    • klog13105

    • Now we didn't use the AS PD signals for interferometer control
    • There was possibility that the reflection light from AS table make dirty scattering light
    • Shadowed between the OMC viewport and AS table, but we couldn't see the clear noise reduction
    • Also, when we added vibration to the OMC viewport, we couldn't detect the noise increasing.

Task list (Partially done)

Task list (todo ; must items)

Task list (todo ; if possible)

- PEM injection

KAGRA/Subgroups/PEM/MAR2020 (last edited 2020-03-21 04:36:19 by TakaakiYokozawa)