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  * Integrated 3D model of each Type-A tower.(JGW-D2011655)
   * According to the 3D model, it was found that the placement of the BF Dumper is offset by 5 degrees from the beam line (EX, EY only) [[attachment:ETM BF Dumper.pdf]]
 * Integrated 3D model of each Type-A tower.(JGW-D2011655)
  * According to the 3D model, it was found that the placement of the BF Dumper is offset by 5 degrees from the beam line (EX, EY only) [[attachment:ETM BF Dumper.pdf]]
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 * Type-B paper: I wrote a [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeB/PaperTODOlist|TO DO list]] which roughtly works as an outline. Thank you Shoda-san for your comments!
  * In case it's not possible to measure the quality factors due to time constraints related to the pandemic, we can cite the prototype paper instead where similar measurements were reported.
  * Include long term drift observation of the optic orientation using the oplev.
  * Check what Terence did about inertial damping. He wrote good klog entries but there's still not enougn information to understand the detail. I will ask him once he becomes avilable to us sometime next month.
 * Inertial damping: I have been checking what Takanori did and I've been trying to adapt it to the case of SR2 using the Matlab simulation. I have questions but I'm not ready to ask. I will do it sometime soon via e-mail.

Agenda/Minutes of the VIS Meeting on 2020/5/15

2020/5/15 14:00 -

Zoom Meeting

Participants:

Task list towards O4

Schedule afetr O3

Progress report

General

Type-A

  • Integrated 3D model of each Type-A tower.(JGW-D2011655)
    • According to the 3D model, it was found that the placement of the BF Dumper is offset by 5 degrees from the beam line (EX, EY only) ETM BF Dumper.pdf

Type-B

  • Type-B paper: I wrote a TO DO list which roughtly works as an outline. Thank you Shoda-san for your comments!

    • In case it's not possible to measure the quality factors due to time constraints related to the pandemic, we can cite the prototype paper instead where similar measurements were reported.
    • Include long term drift observation of the optic orientation using the oplev.
    • Check what Terence did about inertial damping. He wrote good klog entries but there's still not enougn information to understand the detail. I will ask him once he becomes avilable to us sometime next month.
  • Inertial damping: I have been checking what Takanori did and I've been trying to adapt it to the case of SR2 using the Matlab simulation. I have questions but I'm not ready to ask. I will do it sometime soon via e-mail.

Type-Bp

Type-C

Controls

Electronics

Post O3

  • KAGRA is in the suspended mode until 31st May.
  • Only measurements, which can be done remotely, are available (Request).

  • O3c is still under discussion between LVK (Plan, Sheet).

  • Papers
    • Type-A: Shoda(Mechanics), Lucia(Performance), Fujii(Sensor collection).
    • Type-B: Fabian

Safety

Discussion

Travel Plans

Next meeting

  • On 2020/5/22(Fri)

KAGRA/Subgroups/VIS/VISMinutes20200515 (last edited 2020-05-15 14:48:52 by RyutaroTakahashi)