Agenda/Minutes of the VIS Meeting on 2016/7/8

2016/7/8 13:30 - @ Room 210

Participants:Hirata, Takahashi, Ishizaki, Sato, Shoda, Aso, Tanaka, Fabian, Ohishi, Okutomi, Akutsu, Raffaele

Progress report

Schedule Chart (PDF,MPP)

Type-A (Takahashi)

• Minutes of Type-A Meeting

• Vacuum compatibility of the release sensor was checked by Saito-san.
• Simulation

  • Show the result of the simulation with BF damping by the next VIS meeting.(Okutomi)

• Pre-Isolator assembly location
  • CRY group is planning to build an additional clean booth in the KAGRA center area

    • Check when it will be available and until when it is available (Takahashi)

  • ATC ?: Discuss with Raffaele (Takahashi)

• Start of the installation of Type-A will be delayed to January because of the delay in the clean booth construction.
• EQ stop order
  • Need to order in August (as early as possible)
  • Call for bidding is necessary

  • Prepare 3D model by the end of July (Ishizaki)

  • Produce 2D drawings by the end of the 2nd week of August (Ishizaki, Sato)

  • Start talking to the company now (together with Type-Bp team) (Takahashi, Shoda)

  • Start talking to the ICRR administration now (Takahashi)

• Dummy payload

  • Make a conceptual design by July 12 (Okutomi)

• Transportation of items to the end and 2F
  • Need to take out the PI from the crate: careful planning is necessary

  • Coordinate with CRY for passing the CRY clean booth (Takahashi)

Type-B (Mark)

• Type B Past Week Summary
  • Mark did a Type B schedule presentation at the Extended Chiefs Meeting. It was decided to order a second assembly frame so that the BS/SR2/SR3/SRM installations can overlap more.

  • Mark and Hirata-san helped Mirapro construct the assembly frame (photos).

  • Mark and Hirata-san took the jacks and adapter plates off the frame, and cleaned them to remove as much of the original grease as possible. Takahashi-san re-greased them with vacuum grease.
  • Mark and Hirata-san wiped down the assembly frame and put the clean bag on it.
  • Saito-san, Ohishi-san and several people from Mirapro adjusted the position of the BS chamber.
  • Mark plugged the geophones back into the PR2 rack and checked that the repaired cable was working.
  • Fabian did more pre-assembly of the RM/IM/IRM.
  • Fabian designed modifications for the brackets on the security structure for immobilizing the IM, and Hirata-san did 2D drawings from them.
  • Takahashi-san ordered 10 mm diameter x 10 mm long magnets for the IM flags.
  • Mark inspected the SR2 section of the clean booth to see where SR2 assembly could be done. The slot in the ceiling for the crane runs in the ±X direction (at right angles to that for the BS), and there are suitable space on both the +X and the -X sides of the SR2 tank.
  • Hasegawa-san (of Hirose-san's lab) took delivery of the cup for removing the prisms on the dummy BS. It fits well.

  • Tatsumi-san ordered modifications to the BS gluing jig to make it easier to remove the pieces holding the flags after the flags are attached. The parts are expected Fri 7/8. He also ordered more EP30, but this won't arrive until the week of 7/18.

  • Hirata-san measured another filter and cleaned parts for Fabian
• Type B ongoing issues
  • OSEMs
    • Akutsu-san is working to get wide-mouth OSEMs

  • Longer cables for BF->PI and SF->PI.

    • Connectors RECEIVED, cables being made.
  • SR machining test ongoing.
    • We will produce two new RMs. So we do not need to modify the existing ones.
    • We need to schedule the production of the new RMs with ATC
  • Lower breadboard stuff
    • Installation to be incorporated into the procedure document. Mark/Takahashi to discuss.
    • Breadboard springs (in manufacture, expected end of July)
    • Nail-head parts - RECEIVED.
  • Documents

    • BS Assembly Procedure E1504235, E1504235 draft

• To-do list during Mark's vacation
  • Apply grease to jacks for assembly frame (Takahashi)
  • Finish assembly of BS IM, RM and IRM (Fabian).
  • Weigh IM/RM/IRM (Fabian, Hirata)
  • Pack/ship IM/RM/IRM to Kamioka (Hirata/Fabian).
  • Analyze geophone data (Mark, Shoda)
  • Remove glue from dummy BS face (Fabian)
  • Remove prism from dummy BS (Hirose, Fabian?)
  • Reglue flags and prisms (Tatsumi, Fabian)
  • Buy wire for BS and RM (Hirata)
  • Clean wire for BS and RM (Hirata)
  • Do fit/function test of winches (Fabian/Hirata)
  • Ship winches to Kamioka (Hirata/Fabian)
  • Work on BS simulation (Fabian)
  • Do Inventor assembly for SR2 in chamber and on assembly frame (Hirata)
  • Write more of payload assembly procedure (Fabian)
  • Write more of main assembly procedure (Mark)
• Longer term to-do list
  • Do BS Simulink model (Mark, Kokeyama)
  • Do 2D drawings of SR2 parts (Hirata)
  • Redesign SRx IM wire clamps for larger prisms, remachined RMs.
  • Order SRM/PRM parts (Hirata/Shoda)
  • Order SRx fasteners (Hirata)
  • Check SR RM machining test progress (Hirata)

Type-Bp (Shoda)

• Type-Bp modification 3D Drawings
  • Saito-san implemented the Virgo design into the Type-Bp design. (I asked him a little more updates.)
  • We have some questions about F7 LVDTs.
    • Coil specification
    • Its design (Slits on the coils. The place where the wires suppose to come out.)

    • Next meeting will be on July 14th from 4PM (meeting arrangement: Raffaele)

• [A/I] Structual analysis

• Installation related issue
  • Technical document is written by Shoda.
  • Does the Type-B team use the hanging frame for iKAGRA PR2?

  • [A/I] Shoda will decide the meeting date will Mirapro.

IMMT (Ohishi)

• Schedule
  • Finally succeeded in installing Windows and Microsoft Project.

  • Make a schedule by Wednesday next week

  • Asking a company to make a quotation for writing 3D CAD drawing of IMMT suspensions from 2D parts plans.
• BS chamber was relocated (6th and 7th July).
  • Measurement with tape measure shows that now the chamber center is (x, y) = (0mm, +2mm) based on the floor points.
• Rotation: CCW 0.15deg.

Watchdog system (Tanaka)

• Changes the scale of the vertical axis(for PhotoMos Relay).PDF

Safety

• Nothing

Discussion

• Inertial Sensors for Type-B (Mark, Fujii)

  • Take time series data of Geophone output remotely on Monday (Fabian)

  • Find old calibration factors for Geophones (Fabian)

  • Make the three-sensor correlation calculation to deduce the sensor noise (Fabain with Shoda)

  • Fabian will update the status to Aso on July 13th

• What to do with the SR preparation
  • Hirata-san needs to stay in Mitaka for the preparation of the SR suspensions as well as the SFs and BFs for Type-A.

  • Aso will consult with SEO to find one or two students who can stay long in Kamioka and help Mark and Fabian in the test hanging of BS.

Site work plan for the next week

• Mon: Takahshi (witness/supervise the installation of a cross-tube)
• Tue:
• Wed:
• Thu:
• Fri:

Travel Plans

• Travel (Week of 7/11):

  • Takahashi:11 (Cross tube installation)

  • Shoda:
  • Mark:
  • Fabian:
  • Okutomi:
  • Fujii:
  • Ishizaki:
  • Hirata:
  • Sato:
  • Ohishi:
• Travel (Week of 7/18):
  • Takahashi:
  • Shoda:
  • Mark:
  • Fabian:
  • Okutomi:
  • Fujii:
  • Ishizaki:
  • Hirata:
  • Sato:
  • Ohishi:

Mark is away: July 8-20

Visit by ATC on July 20

Next meeting

2016/7/15(Fri) 13:30 - (Takahashi-san will be the chair)