Agenda/Minutes of the VIS Meeting on 2016/12/2

2016/12/2 13:30 -

Participants:

Progress report

Schedule Chart (PDF,MPP)

Type-A (Takahashi)

• Minutes of Type-A Meeting

• Installation: The first transportation to Y-end for Type-A items is scheduled on 7-9th. The second one is scheduled in early January.
• Pre-isolator: Cable connection and check were finished. Two sets have been shipped on 1st.
• EQ stop, release sensor, dummy payload: The parts remained will be delivered on 12th.
• BF damper: The production is on going.
• Maraging wire: Ordered. The first set will be delivered by 20th January.
• Tooling for installation: The hoist tool was ordered.

Type B (Mark)

• Put a report here

Type-Bp (Shoda)

• Put a report here

IMMT (Ohishi)

• Schedule
  • Most of the parts will be assembled and delivered to Kamioka on 28th Dec.
    • (I will be taking winter holiday on 28th but I think I can chek it on 30th Dec.).
    • Dec 20th：Processing completion
    • Dec 21th-22th：Assembly
    • Dec 26th ：Optional extra day
    • Dec 27th：Shipping
  • It depends on the mirror and jig status, but I think the mirror will be hung
    • without magnets/standoff for initial alignment scheduled in January.
  • Hanging and installation will start from 4th January.
  • Two people from FCL are coming for hanging and installation till 12th January.
• Mirror
  • Have not contacted with Hirose-san.
    • IMMT1:
      • Ø: 99.77 mm; Thickness at thinnest point: 51.76 mm; Wedge: 2.45°
    • IMMT2:
      • Ø: 99.75 mm; Thickness at thinnest point: 52.93 mm; Wedge: 2.45°
    • Thickness of the mirrors are 1.17mm different.
• Magnet and standoff fixture jig
  • Perhaps still in Kashiwa.
  • Need at least two new parts and two sims for different thickness of the mirror.
• Hanging jig
  • Now in Mitaka.
• Drawings
  • Dropbox.
• Remaining parts status
  • PZT holder
• Hanging and Installation Procedure:
  • Inside the IFI chamber, there is large IFI;
    • it is so crowded and seems to be difficult installing IMMT suspension from the side flange.
  • We are planning to install IMMT2 from the top flange.
  • Need discussion with Hirose-san about cleanliness control.
  • IMMTs are not on the center line where cranes move.
    • So perhaps we need to move IMMT by hand after we install it from the top flange.
• Place for hanging:
  • Unfortunately I could not have find breadboard legs.
  • Ask Kawamura-san if I can use small optical table that was used at MC recently replaced with larger optical bench.
• Cables:
  • For initial alignment, planned in January, I think only Pico-motors will be necessary.
    • (Coils will not be used for initial alignment.)
  • There already cables used when it was used for iKAGRA ETMs.
  • Check the place where cables are now.
• Digital models
  • Have not prepared yet.
  • IMMT picomotor drivers are located in Mozumi now.
  • Miyo-san said he already setup IP for IMMT drivers and will prepare network port in IOO lack next next week.
• Others
  • Nippon Tungsten Company will give us sample of wires.

Watchdog system (Tanaka)

• Put a report here

Safety

• Incidents:
• Foreseen risks:

Discussion

• Mirror box modification

Site work plan for the next week

• Mon: BS
• Tue: BS
• Wed: BS/Type-A transportation
• Thu: BS/Type-A transportation
• Fri: BS/Type-A transportation

Travel Plans

• Travel (Week of 12/5):
  • Takahashi: 12/6-12/9
  • Shoda:
  • Mark: 12/5-12/9
  • Fabian: 12/5-12/9
  • Okutomi:
  • Fujii:
  • Ishizaki: 12/6-12/9
  • Hirata:
  • Sato:
  • Enzo: 12/5-12/9
  • Ohishi:
• Travel (Week of 12/12):
  • Takahashi:
  • Shoda:
  • Mark:
  • Fabian:
  • Okutomi:
  • Fujii:
  • Ishizaki:
  • Hirata:
  • Sato:
  • Enzo:
  • Ohishi:

Next meeting

On 2016/12/9(Fri)