KAGRA Commissioning status at DET meeting
- Date : 2022/07/04
Overall schedule
- (In case of no trouble)
- 6/20 - 7/1 Suspension commissioning Type-Bp (Continued)
- 7/4 - 7/8 Interferometer commissioning (Alignment, Optics characterization, SRM replacement, ...)
- 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 (Review 7/19)
- High power laser installation (Week of 7/4)
Progress of commissioning
- X arm commissioning
- End X IM 80K
- Investigation of the noise in the new oplev light source
- Y arm commissioning
- End Y : Pumping down ongoing
- Center area commissioning
- Suspension health check Type-Bp's (Monitor, actuator, cabling)
- PR2 and PR3 length sensing oplev seems strange, need to check
- Mirror cleaning SR3 and SRM : Done
- Investigation of the X-arm fiber noise cancellation
- Precise alignment better, but not stable
- We found the weak point around PR3, Miyoki-san fixed it and became better
- New PDs are discussed
- Study for installation of the new laser
- Set inside the PSL room this week
- Suspension health check Type-Bp's (Monitor, actuator, cabling)
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