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Revision 4 as of 2022-06-27 08:56:12
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KAGRA Commissioning status at DET meeting

  • Date : 2022/06/27

Overall schedule

  • (In case of no trouble)
    • 6/27 - EY : 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 ~PR2
    • 8/1 - 8/5 Closing the center area ~PR2
    • 8/8 - 8/19 (Including Obon) Acceptance check ~SRM
    • 8/22 - 8/26 Closing the center area ~SRM
    • 8/29 - 9/2 Leak test
    • Mid size baffle installation (SR3, SRM)
    • SRM replacement (Week of 7/4)
    • ISS installation
    • High power laser installation (Week of 7/4)

Progress of commissioning

  • X arm commissioning
    • End X IM 90K
    • Investigation of the noise in the new oplev light source
  • Y arm commissioning
    • End Y : Leak done
  • Center area commissioning
    • Suspension health check Type-Bp's
    • Mirror cleaning SR3 and SRM
    • Investigation of the X-arm fiber noise cancellation
      • We cannot keep control for the long time
      • We have to fix it before starting the ALS DARM commissioning
    • Study for installation of the new laser
      • Alignment check by using heavy mass

Interesting data

  • X arm cavity
    • Both IR and GR
    • Glitch investigation of the ITMX ADC
    • Glitch investigation of the MN oplev light source
  • Y arm commissioning
    • Both IR and GR
  • Center area commissioning
    • Main IR
    • ALS
    • 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?)
    • OMC
      • Invesigation will continue after closing the center area
      • Because the BS is too fluctuate, it became difficult to investigate

KAGRA/Subgroups/DET/Meeting/220627 (last edited 2022-06-27 08:56:12 by TakaakiYokozawa)