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
- (LVK information)
- O4a will start March 2023
Progress of commissioning
- Y arm commissioning
- IY leak test done
- IY oplev windshield installed
Interesting data
- X arm cavity
- Both IR and GR
- Y arm commissioning
- Pumping down started
- EY has leak point, we will open the chamber soon
- IR and GR lock succeeded!
- Center area commissioning
- Main IR
- Table configuration : ongoing
IFO refl table JGWDoc9238
POP (Pick of PR2) table JGWDoc9623
- POP forward QPD installed
Interesting channel for X arm IR lock : JGWDoc14080
- Table configuration : ongoing
- Mirror cleaning(first contact) and mid-size baffle installation
- PR2 : Installed
- SR2 : Installed
- BS : Installed
- PRM : Installed
- PR3 : First contact (maybe) done
- SR3 : Not yet
- SRM : Not yet (When replacement?)
- IMC (Input Mode Cleaner)
- ASC (Alignment Sensing and Control) done
- Interesting point
- Long term stability check
- Beam power, beam position, oplev monitoring
- Glitch investigation
- Temperature dependence
- Relationship between PSL room
- With PEM channels
- (Hammering test?)
- Long term stability check
- Suspension commissioning : ongoing
- PR's suspension middle of June - end of June (two weeks)
- OMC installation : done
- Some unexpected glitch : circuit?
- Alignment : partially done : BS fluctuation large and SRM replacement
- TF measurement : ongoing
- High power laser
- Accepted to install to KAGRA site
- When exchange the laser source : Unknown
- ISS (Intensity Stabilization System) installation : unknown
- Must item before closing chamber
- Main IR
- Interferometer commissioning
- X and Y arm IR cavity lock check
- Green laser system
- Fiber noise cancelling check
- ISC (Interferometer Sensing and Control, LSC and ASC)
- Next : ALS DARM lock?
- Action items before closing chamber : Will discuss tomorrow