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• VISMinutes20170120

Agenda/Minutes of the VIS Meeting on 2017/1/20

2017/1/20 13:30 -

Participants:

Progress report

Schedule Chart : (PDF,MPP)

Type-A (Takahashi)

• Put a report here

Type B (Mark)

• Put a report here

Type-Bp (Shoda)

• Hanging report: The spare mirror and the RM was hanged.

  • Since the suspension wire slipped out from the drum on the winch, we replaced the winch, and re-hang the spare mirror. This time, we could hang the spare mirror without accidents.
  • We re-clamped the wire since the spare mirror tilted largely when we clamped the wires. It seems that the wire clamp plate slipped when we tighten the screws.
  • After re-clamping, we also observed the slow drift of the mirror orientation in tilt. Now the mirror HR surface facing down by 8.5/1000 rad. But we will continue the test hanging, since it does not matter for the purpose of the test hanging. We will have to wait for about 10 mins when we clamp the wires for the actual mirrors.
  • RM was inserted properly and hanged. The modification on RM trolley worked well. I was happy with the RM stabilized by the modification.

• Next week task Goal: suspend IM and IRM

  • Check TF of the RM using PSs.
  • Assemble the EQ stop below the BF, and set the BF on it.
  • Hang IM from the BF.
  • Hang IRM.

• The BFRM parts will be delivered on 20th. --> Test assembly in the next or next next week.

• To Do

  • Establish the disassembly procedure
  • Modify the mirror box
  • Buy the new mirror gluing tools for KAGRA

IMMT (Ohishi)

• Put a report here

Watchdog system (Tanaka)

• Put a report here

Safety

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

Discussion

* Smaller coil design status update (Aso) * Travel plan for the rest of the FY (Aso)

Site work plan for the next week

• Mon:
• Tue:
• Wed:
• Thu:
• Fri:

Travel Plans

• Travel (Week of 1/23):
  • Takahashi: 23-27
  • Shoda: 23-27
  • Mark: 23-27?
  • Fabian: 23-27?
  • Okutomi: 23-27
  • Fujii:

  • Ishizaki:23-27

  • Hirata: 23-27?
  • Sato: 23-27
  • Enzo: 23-27
  • Hashimoto (Hosei Univ.): 24-27
  • Someya (Hosei Univ.): 24-27
  • Ohishi:
• Travel (Week of 1/30):
  • Takahashi:
  • Shoda:
  • Mark:
  • Fabian:
  • Okutomi:
  • Fujii:
  • Ishizaki:
  • Hirata:
  • Sato:
  • Enzo:
  • Ohishi:

Next meeting

On 2017/1/27(Fri) VIS F2F: Feb. 17th