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| = CAL Meeting on 2016/9/28 15:00 = Participants: |
== CAL Meeting on 2016/9/28 15:00 - 16:40 == Participants: Kanda, Yamamoto, Kokeyama, Suzuki, Tomaru, Inoue, Ushiba, Miyamoto(CRYp), Haino |
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| == Agenda == * Rick's visit of Kashiwa and Kamioka (Sep./9-10) * Pcal design [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5702|G1605702]] |
* Next meeting will be around in 10/20-11/8 (to be determined) === Minutes === * Rick's visit of Kashiwa and Kamioka (Sep./9-10) - Inoue * Visited of X-end * Discussed on - * Periscope design (EXA chamber) * Power standard (Tomaru-san) * Camera * Elastic deformation (LIGO -> KAGRA) * LIGO Pcal+alpha * Pcal design [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5702|G1605702]] - Inoue |
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| * To be discussed if we really need two beams | |
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| * Collaboration work with AOS * For the first step, independent system with slow (manual) taking * How to monitor the mirror edges ? and how to determine absolute position ? * GigE camera could also monitor the mirror position ? |
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| * We will need a beam shutter in order to avoid exciting high frequency resonance before the Optical follower locks | |
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| * Type-A simulation (T.Miyamoto) * iKAGRA post-run calibration [[http://klog.icrr.u-tokyo.ac.jp/osl/index.php?r=1767|KAGRA logbook 2016/9/6]] |
* Power standard [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5704|G1605704]] - Tomaru * Inter-institute comparison is not done so often (only every ~10 years) and discrepancy of ~1% * Firstly share the same standard between LIGO and KAGRA and then investigate more on the systematics later * Discussions from theory/analysis side are needed for the impact and requirement on the absolute amplitude * Type-A simulation - Miyamoto and Inoue * Suspension transfer function - SUMCOM * Cross-check between Minamoto-San and Okutomi-san * Actuator noise budget estimation - MATLAB * Time schedule - mid.Oct. * For CAL check the transfer function with the control chain * iKAGRA post-run calibration [[http://klog.icrr.u-tokyo.ac.jp/osl/index.php?r=1767|KAGRA logbook 2016/9/6]] - Yamamoto * We need to transfer back data from Kashiwa to Kamioka to put in DGS * All the necessary transfer functions should be exported from DGS to frame file for the offline calibration |
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| * Haino : 10/3 - 10/11 visit EGO/Virgo (learn commissioning and Virgo week in 10/10) * Haino : Oct.-Nov. visit Annecy to discuss about Virgo Pcal * Inoue : 10/21 - 11/10 LHO (Camera and Pcal discussion with Rick) * 2017/1/15 - 1/16 : Kajita-san comes to Taiwan for Physical Society meeting * 2017/1/15 - 1/22 : Rick comes to Taiwan for Physical Society meeting * Calibration meeting in Taiwan-Japan with Rick in this period ? |
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| * In the chief meeting on 10/11, Inoue will briefly mention about Pcal idea * CAL meeting will be held every ~1 month with dates to be determined flexibly |
CAL Meeting on 2016/9/28 15:00 - 16:40
Participants: Kanda, Yamamoto, Kokeyama, Suzuki, Tomaru, Inoue, Ushiba, Miyamoto(CRYp), Haino
- Next meeting will be around in 10/20-11/8 (to be determined)
Minutes
- Rick's visit of Kashiwa and Kamioka (Sep./9-10) - Inoue
- Visited of X-end
- Discussed on -
- Periscope design (EXA chamber)
- Power standard (Tomaru-san)
- Camera
Elastic deformation (LIGO -> KAGRA)
- LIGO Pcal+alpha
Pcal design G1605702 - Inoue
- Optimization of beam positions
- To be discussed if we really need two beams
- Beam monitoring (view camera)
- Collaboration work with AOS
- For the first step, independent system with slow (manual) taking
- How to monitor the mirror edges ? and how to determine absolute position ?
- GigE camera could also monitor the mirror position ?
- Periscope
- Transmitter module
- We will need a beam shutter in order to avoid exciting high frequency resonance before the Optical follower locks
- Schedule
- Optimization of beam positions
Power standard G1605704 - Tomaru
- Inter-institute comparison is not done so often (only every ~10 years) and discrepancy of ~1%
- Firstly share the same standard between LIGO and KAGRA and then investigate more on the systematics later
- Discussions from theory/analysis side are needed for the impact and requirement on the absolute amplitude
- Type-A simulation - Miyamoto and Inoue
- Suspension transfer function - SUMCOM
- Cross-check between Minamoto-San and Okutomi-san
- Actuator noise budget estimation - MATLAB
- Time schedule - mid.Oct.
- For CAL check the transfer function with the control chain
- Suspension transfer function - SUMCOM
iKAGRA post-run calibration KAGRA logbook 2016/9/6 - Yamamoto
- We need to transfer back data from Kashiwa to Kamioka to put in DGS
- All the necessary transfer functions should be exported from DGS to frame file for the offline calibration
- Up-coming activities
- Haino : 10/3 - 10/11 visit EGO/Virgo (learn commissioning and Virgo week in 10/10)
- Haino : Oct.-Nov. visit Annecy to discuss about Virgo Pcal
- Inoue : 10/21 - 11/10 LHO (Camera and Pcal discussion with Rick)
- 2017/1/15 - 1/16 : Kajita-san comes to Taiwan for Physical Society meeting
- 2017/1/15 - 1/22 : Rick comes to Taiwan for Physical Society meeting
- Calibration meeting in Taiwan-Japan with Rick in this period ?
- AOB
- In the chief meeting on 10/11, Inoue will briefly mention about Pcal idea
- CAL meeting will be held every ~1 month with dates to be determined flexibly