KAGRA Commissioning status at DET meeting
- Date : 2022/08/29
Overall schedule
- Overall schedule
- (Done) 7/11 - 8/26 Suspension commissioning Type-B
- (Done) 8/22 - 8/26 Closing the center area PRM~PR2
- 8/29 - 9/2 Closing the center area BS~SRM
- 9/5 - 9/6 Closing the chamber with interferometer alignment
- 9/7 - pumping down started if all work are done
- 8/22 Acceptance check mid-size baffules
- 8/26 Acceptance check ~SRM
- Y/YY Acceptance check IMC~PRM
- X/XX Closing IMM-PRM and SRM-OMC
Progress of commissioning
- X arm commissioning
- End X IM 81K
- Investigation of the noise in the new oplev light source
- Investigation of the ADC noise
- Y arm commissioning
- Pumping down ongoing
- IY duct shield cooling (8/5- Started)
- Beam dump around IFI
- Many ghost beam
- beam dumper from reflection beam of the PRM
- Temperature monitor
- ALS CARM/DARM
- ALS CARM/DARM lock succeeded
- Transfer function measurement Type-A suspension
- Now the noise level is limited by the ALS after fiber noise cancellation
- Find IR resonance improved
- After recovery of the alignment to AS table, FPMI trial will start
- MICH 3f lock
- Actuation efficiency measurement
- TCam analysis
Find the beam position klog#21839
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
- MICH 3f lock
- Check the lock information
- ALS CARM/DARM
- Check the lock information
- 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
- MICH 3f lock