Differences between revisions 11 and 19 (spanning 8 versions)
Revision 11 as of 2022-06-20 09:02:25
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Revision 19 as of 2022-06-22 11:57:40
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  * O4a will start March 2023   * O4a will start March 2023 [[https://observing.docs.ligo.org/plan/|web]]
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  * IY leak test done
  * IY oplev windshield installed
  * IY leak test done [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21135|klog#21135]]
  * IY oplev windshield installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21192|klog#21192]]
  * End Y : Start the leak (very slowly to avoid the dust.)
   * 1 week leaking, fixing early next week [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21191|klog#21191]]
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  * MICH fringe detected ([[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21149|klog21149]])   * MICH fringe detected ([[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21149|klog#21149]])
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   * SR2 : Installed
   * BS : Installed
   * PRM : Installed
   * PR3 : Installed
   * SR3 : Not yet
   * SRM : Not yet (When replacement?)
   * SR2 : Installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20205|cleaned]]
   * BS : Installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20857|cleaned]]
   * PRM : Installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20702|cleaned]]
   * PR3 : Installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21082|cleaned]]
   * SR3 : Not yet [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21212|cleaned]]
   * SRM : Not yet (When replacement?) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21208|cleaned]]
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   * ITMX glitch from ADC    * ITMX glitch from ADC [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21185|klog#21185]]

KAGRA Commissioning status at DET meeting

  • Date : 2022/06/20

Overall schedule

  • (In case of no trouble)
    • 6/20 - 6/24 Leak of End Y
    • 6/27 - Repair the leak point and start the pumping down
    • 6/20 - 7/1 Suspension commissioning Type-Bp
    • 7/4 - 7/8 Interferometer commissioning
    • 7/11 - 7/22 Suspension commissioning Type-B
    • 7/25 - 7/29 Acceptance check
    • 8/1 - Closing the center area
    • Mid size baffle installation
    • ISS installation
    • High power laser installation
  • (LVK information)
    • O4a will start March 2023 web

Progress of commissioning

  • Y arm commissioning
    • IY leak test done klog#21135

    • IY oplev windshield installed klog#21192

    • End Y : Start the leak (very slowly to avoid the dust.)
      • 1 week leaking, fixing early next week klog#21191

  • Center area commissioning
    • MICH fringe detected (klog#21149)

    • Mirror cleaning(first contact) and mid-size baffle installation
    • Others
      • ITMX glitch from ADC klog#21185

      • PR traverser limit switch install
      • Green related work

Interesting data

  • X arm cavity
    • Both IR and GR
  • Y arm commissioning
    • Both IR and GR
  • Center area commissioning
    • Main IR
    • IMC (Input Mode Cleaner)
      • ASC (Alignment Sensing and Control) done
      • Long term stability check
        • Beam power, beam position, oplev monitoring
      • Glitch investigation
      • Temperature dependence
      • Relationship between PSL room
      • With PEM channels
      • (Hammering test?)

KAGRA/Subgroups/DET/Meeting/220620 (last edited 2022-06-22 11:57:40 by HirotakaYuzurihara)