Agenda/Minutes of the VIS Meeting on 2017/3/31
2017/3/31 13:30 - 14:20
Participants: Hirata, Takahashi, Okutomi, Sato, Enzo, Mark, Fabian, Aso, Akutsu, Shoda, Raffaele, Tanaka
Progress report
Type-A (Takahashi)
Past week report
Installation in Y-end: No work at the site.
- Ordered some items for the X-end (chain blocks, hand lifter).
- Preparing for the Type-A experiments (modification of geophone pod).
Plan for coming weeks
- Lifted down the maraging wire for the cryo-payload.
- Assemble the F2 stage.
Type B (Mark)
Past week report
- Mark, Fabian, Enzo, Hirata-san at f2f - no site work.
- Mark and Enzo worked on updates to suspension cabling diagram E1503600.
- Hirata-san worked on 2D drawings for new BF ballast masses and PR/SR mirror box mods.
Plan for coming weeks
Week of 4/3
- Clean up after floor work.
- Prepare PI for moving.
- Remove accelerometers.
- Remove large weights.
- Remove arc weights.
- Attach lifting plates.
- Wrap with clingwrap, cover with spare cleanbag.
- Clear path to remove PI with forklift.
- Move worktables.
- Move portable cleanroom.
- Shutdown rack and move electrical cables.
- Prepare second floor for receiving PI.
- Clean and clingwrap pallet.
- Double-check dimensions.
- Disconnect fan cables, curtain.
- Crane PI into clean booth.
Week of 4/10
- Add temporary ballast to SF.
- Lift SF/BF/... section and check/adjust pitch/roll of SF and total weight.
- Continue rearrangement of in-vacuum cabling past SF.
- Prepare PI for craning onto assembly frame.
- Finish installing LVDT coils.
- ...
- Find additional arc weights.
Discussion
- Need to find a folk lift operator on 4/4 and 4/5. Aso will ask people in Kamioka.
Type-Bp (Shoda)
Past week report
- Preparation of the PR3 mirror (Miyo, Shoda)
- Gluing went better than before. The wire breaker holding jigs did not glued together this time.
- Mirror is packed. Ready to be shipped. The mirror will be shipped on Sunday and delivered on Monday morning.
- Shoda think that the preparation is a bit inefficient since the tools are spread out at Kamioka and at Mitaka. It would be better if we can store all the gluing tools at the place we do gluing.
- Aso will ask Kawamura-san if gluing in the Kamioka clean booth is possible or not.
Plan for coming weeks
- Complete TM/RM stage
- Hang the mirror
- Hang the RM
- Measure the TF of RM/TM using photo sensors
- Replace the BF LVDT
- Check the fit of the optical bench suspension hook
IMMT (Ohishi)
Past week report
Plan for coming weeks
Watchdog system (Tanaka)
Past week report
Operational test(for power unit) acquisition and analysis of thermal data.-->ReportPDF(JGW-E1706434)
- Main board(WDS main PCB) mounting and implementation.
Plan for coming weeks
- Main board(WDS main PCB) mounting and implementation(Ongoing).
Safety
- Incidents: No
- Foreseen risks
- Type-A: Crane works
- Type-B: Crane, Carrying heavy items, Folk Lift
- Type-Bp: Suspend the real mirror.
Discussion
Travel Plans
- Travel (Week of 4/3):
- Takahashi: 3-6
- Shoda: 3-6
- Mark: 3-6
- Fabian: 3-6
- Okutomi: 3-6
- Fujii:
- Ishizaki: 3-6
- Hirata: 3-6
- Sato: 3-6
- Enzo: 3-6
- Ohishi:
- Tanaka:
- Perry: 3-7
- Sekiguchi(Hosei):
- Hirayama(Hosei):
- Wada (Ando Lab.): 3-5
- Travel (Week of 4/10):
- Takahashi: 10-14
Shoda:10-14
- Mark: 10-14
- Fabian: 10-14
- Okutomi: 10-14
- Fujii:
- Ishizaki: 11-14
- Hirata: 11-14
- Sato: 10-14
- Enzo: 10-14
- Ohishi:
- Tanaka:
- Perry: 10-14
- Sekiguchi(Hosei):11-14
- Hirayama(Hosei):11-14
Next meeting
On 2017/4/7(Fri) F2F@Mitaka