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Participants:

[[https://paper.dropbox.com/doc/VIS-Commissioning-Task-List--AlK26n6oP8QHU_XUQriwv2PvAg-RKcNXfMFrqOtTAPU48qQf|VIS Commissioning Task List]]		 Participants: Takahashi, Sato, Hirata, Tanaka, Shoda, Aso, Fabian, Lucia, Ishizaki
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 * Making the integrated 3D models for each Type-A tower.
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No apparent damage was inflicted to Type-B suspensions by the earthquakes.

 * All the signals from the QPDs and from the OSEMs look fine.
 * They can be put in ALINED state without apparent problem.
 * Yokozawa-san was able to lock the Y Arm with green light, which confirms that at least SR3 is fine.
 * Later Nakano-kun recovered the PRFPMI.
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 * Nakano-kun recovered PR3: klog entry [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=14300|14300]].
 * It seems PR2 required IM picomotor adjustment but apprently there's no klog report about it.
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 * AOS(Akutsu-san) suggested to modify the IMMT2 suspension.
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 * Please check Terrence's report.
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 * Considering some kinds of filter circuits.
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  * Type-B: Fabian
  * Type-A: Lucia, Fujii(Sensor collection).		   * Type-A: Lucia(General), Fujii(Sensor collection).
  * Type-B: Fabian: I have been gathering data about sensors and writing; there's still no draft to share.
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 * [[https://paper.dropbox.com/doc/Plan-for-the-long-OR-brake--AxxlJFvK1IGJjqrG5nfdHfGXAQ-KqexeqMaCA7DITFGxA5ih|Plan]]  * [[https://paper.dropbox.com/doc/Plan-for-the-long-OR-brake--AxxlJFvK1IGJjqrG5nfdHfGXAQ-KqexeqMaCA7DITFGxA5ih|Plan]], [[https://www.dropbox.com/s/hoadb73fdyah02c/Post-O3%20task.xlsx?dl=0|Sheet]]

Agenda/Minutes of the VIS Meeting on 2020/4/24

2020/4/24 14:00 -

Zoom Meeting

Participants: Takahashi, Sato, Hirata, Tanaka, Shoda, Aso, Fabian, Lucia, Ishizaki

Task list towards O4

Schedule afetr O3

Progress report

General

Type-A

  • Making the integrated 3D models for each Type-A tower.

Type B

No apparent damage was inflicted to Type-B suspensions by the earthquakes.

  • All the signals from the QPDs and from the OSEMs look fine.
  • They can be put in ALINED state without apparent problem.
  • Yokozawa-san was able to lock the Y Arm with green light, which confirms that at least SR3 is fine.
  • Later Nakano-kun recovered the PRFPMI.

Type-Bp

  • Nakano-kun recovered PR3: klog entry 14300.

  • It seems PR2 required IM picomotor adjustment but apprently there's no klog report about it.

Type-C

  • AOS(Akutsu-san) suggested to modify the IMMT2 suspension.

Controls

  • Please check Terrence's report.

Electronics

  • Considering some kinds of filter circuits.

Post O3 (4/21~)

  • Request

  • Papers
    • Type-A: Lucia(General), Fujii(Sensor collection).
    • Type-B: Fabian: I have been gathering data about sensors and writing; there's still no draft to share.

Towards O3c

Safety

Discussion

Travel Plans

Next meeting

On 2020/5/1(Fri)

KAGRA/Subgroups/VIS/VISMinutes20200424 (last edited 2020-04-24 15:08:58 by RyutaroTakahashi)