• KAGRA
• Subgroups
• DET
• Meeting
• 220627

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