Agenda/Minutes of the VIS Meeting on 2017/11/24

2017/11/24 13:30 -

Participants:

Progress report

Schedule Chart

Type-A : (PDF,MPP)

Type-B: (PDF,MPP)

• Type-A:
• Type-B:
• Type-Bp:

Type-A (Takahashi)

Past week report

[X-end]

• Recovered from the blackout.
• Lifted down the EQ stop to release the bottom stopper for BF.
• Set the F2 stage on the frame lock and cabled between F1 and F2.
• Suspended the filter chain from the F1, and checked the load for F1.
• Set the F1 stage on the frame lock and extended the EQ stop.
• Started the cabling between F0 and F1.
• Set the top ring onto the frame lock.

Plan for coming weeks

• X-end: Installation of the pre-isolaotor and reassembly of the BF damper.
• Y-end: Connection to the cryo-payload.

Type B (Mark)

Past week report

• Mark worked on SR2 planning.
• Mark thought through what would be required to swap an optic (e.g., SRM) in situ (JGW-T1707436).
• Hirata-san tried removing disks from IM flags (so we could reuse them in flag bases and make a complete set for SR2) but only got 1 of 4 out.
• Hirata-san ordered more disks for IM flags.
• Hirata-san asked for quotes on SF LBB blades.
• Hirata-san got a reduced quote for the LBB damper rings.
• Hirata-san received and cleaned suspension wires for the SR.
• Fabian worked on the SR mass budget.
• Fabian worked out the COM of the SR2 optic, and Mark used it to derive the proper prism positions.
• Enzo and Kozu-kun worked on control filter design and installation.

Plan for week of 11/27

• Fabian at commissioning workshop
• Hirata-san at Kamioka Tue-Fri to work with Mirapro on SRM LBB installation.
• All others (Mark, Enzo, Shoda-san, Kozu-kun) at Kamioka to start SR2 assembly.
  • Mark from Mon lunchtime.
  • Kozu-kun from Mon lunchtime through Wed.
  • Mirror gluing.
  • SR2 rack setup.

Plan for week of 12/4

• All at Kamioka
  • IM assembly and pico test.
  • Assembly frame alignment and optical table centering.
  • OL setup.

Vacation Info

• Mark 12/22-1/3
• Enzo TBD, probably 12/22-1/3
• Fabian 12/22-1/5
• Hirata-san 12/21-22 (conference)

Type-Bp (Shoda)

Past week report

Plan for coming weeks

OMMT & OSTM (Ohishi)

Past week report

Plan for coming weeks

Watchdog system (Tanaka)

Past week report

• I want to start ordering mass production version.-->*Waiting.

  • The execution of the budget was stopped by AEL.

  • -->Budget execution was allowed.(Meeting at Kamioka.)

• Star of order related works.-->Completed(Coop Univ.Tokyo and anther corp.).

• Operation test of the testing tool for mass production equipment.-->Completed.

• I stay at Toyama on the 19th.And experiment in Kamioka from 20th to 22nd.-->20th I could't experiment by power outage.21th Completed the connection experiment with the digital system. 22nd The cutoff operation test does not go well.-->

  • DC power supply fault(?).
  • I can't see the driver output and sensor output.

Plan for coming weeks

• Plan the operation test again at KAGRA.
• Retest in Mitaka.

• Start ordering mass production version.-->Start preparations.

Other site works

• Commissioning Workshop: Nov. 27 to Dec. 1st

Safety

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

Discussion

Brainstorming on how to exchange the payload part without completely disassembling the suspension chain

• Type-B assembly drawings

• Type-Bp drawings

Travel Plans

• Travel (Week of 11/27):
  • Takahashi:
  • Okutomi:
  • Sato:
  • Ishizaki:
  • Mark:
  • Fabian:
  • Hirata:
  • Enzo:
  • Shoda:
  • Ohishi:
  • Fujii:
  • Tanaka:
  • Kozu (ICRR):
  • Arai (ICRR):
• Travel (Week of 12/4):
  • Takahashi:
  • Okutomi:
  • Sato:
  • Ishizaki:
  • Mark:
  • Fabian:
  • Hirata:
  • Enzo:
  • Shoda:
  • Ohishi:
  • Fujii:
  • Tanaka:
  • Kozu (ICRR):
  • Arai (ICRR):

Next meeting

On 2017/12/1(Fri)