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⇤ ← Revision 1 as of 2022-08-22 07:16:29
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Size: 2187
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| Deletions are marked like this. | Additions are marked like this. |
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| * Date : 2022/08/08 | * Date : 2022/08/22 |
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| * 7/11 - 8/12 Suspension commissioning Type-B | * 7/11 - 8/19 Suspension commissioning Type-B * 8/22 - 8/26 Closing the center area PRM~PR2 * 8/29 - 9/5 Closing the center area BS~SRM * 9/6 - pumping down |
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| * 8/19 Acceptance check BS~SRM * X/XX Acceptance check interferometer PR3-SR3 * 8/22 - 8/26 Closing the center area PRM~PR2 * 8/29 - 9/2 Closing the center area BS~SRM * 9/5 - 9/9 Leak test |
* 8/19 Acceptance check BS, SR2, SR3, SRM * 8/22 Acceptance check mid-size baffules * 8/26 Acceptance check interferometer |
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| * Monitor, eigen-frequency, transfer function check [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14196|poster]] | |
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| * Now the noise level is limited by the ALS after fiber noise cancellation |
KAGRA Commissioning status at DET meeting
- Date : 2022/08/22
Overall schedule
- Overall schedule
- 7/11 - 8/19 Suspension commissioning Type-B
- 8/22 - 8/26 Closing the center area PRM~PR2
- 8/29 - 9/5 Closing the center area BS~SRM
- 9/6 - pumping down
- 8/5 Acceptance check PRM, PR2, PR3 suspensions
- 8/19 Acceptance check BS, SR2, SR3, SRM
- 8/22 Acceptance check mid-size baffules
- 8/26 Acceptance check interferometer
- Y/YY Acceptance check IMC~PRM
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
- Installed the ion pums to IXC and IYC
- 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
- Calibration confirmation
- Transfer function measurement Type-A suspension
- Noise budget
- Now the noise level is limited by the ALS after fiber noise cancellation
- MICH 3f lock
- Actuation efficiency measurement
- Discussion of closing center area
- Oplev pylon
- Beam duct re-installation
- New gate valve
- Closing chambers around BS area
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