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 * Sensor correction calibration of ITMY was wrong. IFO Feedback signal on the TM was reduced by about 5 times after the calibration factor was fixed.
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 * Fabian measured the TF from PRs to DARM. --> Noise budget projection??
 * PR2 and PR3 oplev went away due to the large earthquake.

Agenda/Minutes of the VIS Meeting on 2020/3/13

2020/3/13 14:00 -

Zoom Meeting

Participants:

VIS Commissioning Task List

Post-O3 task list

Procurement list in 2019FY

Schedule afetr O3

Progress report

Type-A

Past week report

  • Sensor correction calibration of ITMY was wrong. IFO Feedback signal on the TM was reduced by about 5 times after the calibration factor was fixed.

Plan for coming weeks

Type B

Past week report

  • I wrote a document with guidelines for the design the oplev boxes: JGW-E2011540-v1.

    • It's intended for Mirapro.
    • Some information still needs to be included.
    • Please give me feedback in case you feel like.
    • A 3D-CAD is included.
  • I measured transfer functions from some BS DoF to DARM: klog entries 13463 and 13477.

    • Projections of noise onto DARM not done yet.

Plan for coming weeks

Type-Bp

Past week report

  • Fabian measured the TF from PRs to DARM. --> Noise budget projection??

  • PR2 and PR3 oplev went away due to the large earthquake.

Plan for coming weeks

Type-C

Past week report

Plan for coming weeks

VIS electronics

Past week report

Plan for coming weeks

Safety

Discussion

Travel Plans

  • Travel (Week of 3/16):
    • Takahashi: 16-18
    • Sato: 17-18 (Kashiwa)
    • Hirata:
    • Shoda:
    • Fujii:
    • Tanaka:
  • Travel (Week of 3/23):
    • Takahashi:
    • Sato: 23-25 (Shift)
    • Hirata: 24-26 (Shift)
    • Shoda: 22-24 (Shift)
    • Fujii:
    • Tanaka:

Next meeting

On 2020/3/27(Fri)

KAGRA/Subgroups/VIS/VISMinutes20200313 (last edited 2020-03-13 15:58:12 by RyutaroTakahashi)