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Revision 3 as of 2018-04-06 13:34:47
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[X-front]
  * Lifted up the EQ stop to access the F3 and recovered the touching problem in the F3.
  * Lifted down the EQ stop again. Extended the EQ stop to the F1 stage.
  * Tuned the F1. The lowest frequency was 0.45Hz. When the filter was suspended with the cap, it went to the bi-stable.
  * Decompressed the blades. Finally the frequency was around 0.5Hz.
  * Checked the FR in the F1. Adjustable rage of keystone was +/- 4mm.
  * Cabled around the F1 and checked the cable connection.
  * Lifted down the EQ stop. The end plate for the F1 was sit on the frame lock.
  * Extended the EQ stop to the top ring.

[X-end]
  * Adjusted the height of filters.
  * Connected the PT100 sensor to the monitor line for CRY.
  * Check the FR range in the BF.
Line 16: Line 32:

[X-front]
  * Set the bridge frame.
  * Prepare for the pre-isolator.
Line 23: Line 43:
 * I found that the most of the magnet direction of PRM IM flag are facing wrong. We should fix the consistency with the compensation magnets at some point.

Agenda/Minutes of the VIS Meeting on 2018/4/6

2018/4/6 13:30 -

Participants:

Progress report

Schedule Chart

Type-A : (PDF/MPP)

Type-B: (PDF/MPP)

Type-A (Takahashi)

Past week report

[X-front]

  • Lifted up the EQ stop to access the F3 and recovered the touching problem in the F3.
  • Lifted down the EQ stop again. Extended the EQ stop to the F1 stage.
  • Tuned the F1. The lowest frequency was 0.45Hz. When the filter was suspended with the cap, it went to the bi-stable.
  • Decompressed the blades. Finally the frequency was around 0.5Hz.
  • Checked the FR in the F1. Adjustable rage of keystone was +/- 4mm.
  • Cabled around the F1 and checked the cable connection.
  • Lifted down the EQ stop. The end plate for the F1 was sit on the frame lock.
  • Extended the EQ stop to the top ring.

[X-end]

  • Adjusted the height of filters.
  • Connected the PT100 sensor to the monitor line for CRY.
  • Check the FR range in the BF.

Plan for coming weeks

[X-front]

  • Set the bridge frame.
  • Prepare for the pre-isolator.

Type B (Mark)

Past week report

Plan for coming weeks

Type-Bp (Shoda)

Past week report

  • I found that the most of the magnet direction of PRM IM flag are facing wrong. We should fix the consistency with the compensation magnets at some point.

Plan for coming weeks

OMMT & OSTM (Ohishi)

Past week report

Plan for coming weeks

Watchdog system (Tanaka)

Past week report

Plan for coming weeks

Other site works

Safety

  • Incidents:
  • Foreseen risks
    • Type-A:
    • Type-B:
    • Type-Bp:

Discussion

  • F2F talk

Travel Plans

  • Travel (Week of 4/9):
    • Takahashi:
    • Okutomi:
    • Sato:
    • Ishizaki:
    • Mark:
    • Hirata:
    • Enzo:
    • Shoda:
    • Ohishi:
    • Fujii:
    • Tanioka:
    • Tanaka:
    • Kozu (ICRR):
    • Arai (ICRR):
  • Travel (Week of 4/16):
    • Takahashi:
    • Okutomi:
    • Sato:
    • Ishizaki:
    • Mark:
    • Hirata:
    • Enzo:
    • Shoda:
    • Ohishi:
    • Fujii:
    • Tanioka:
    • Tanaka:
    • Kozu (ICRR):
    • Arai (ICRR):

Next meeting

On 2018/4/13(Fri)

KAGRA/Subgroups/VIS/VISMinutes20180406 (last edited 2018-04-06 15:39:39 by YoichiAso)