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  * High power beam installation   * High power laser installation

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

Progress of commissioning

  • Y arm commissioning
    • IY leak test done
    • IY oplev windshield installed
  • Center area commissioning
    • MICH fringe detected (klog21149)

    • Mirror cleaning(first contact) and mid-size baffle installation
      • PR2 : Installed
      • SR2 : Installed
      • BS : Installed
      • PRM : Installed
      • PR3 : Installed
      • SR3 : Not yet
      • SRM : Not yet (When replacement?)
    • Others
      • ITMX glitch from ADC
      • 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)