VIS Meeting on 2015/12/11

2015/12/11 13:30 -

Kamioka NAOJ Room + SeeVogh

Participants:

Schedule

• Schedule status (Aso)
  • Latest schedule chart

PR

• Test Hanging Status (Takahashi)
  • LVDT driver
  • Picomotor connection
  • Fishing rod motor

    • Will use a non-vacuum compatible D-SUB for the hanging test. -> Status

• PR2 Status (Mark, Fabian)
• Location of the EQ stop pillars (Takahashi)
• Digital System (Okutomi, Fujii)
• BF Optimal Weight (Takahashi)
  • Check the optimal load for the ETM BFs at the ATC: Need to be done before the end of Jan. Arrange with ATC people (Takahashi)
  • Balast mass design
• Traverser actuation check (Shoda)
• Traverser stop mechanism (Shoda)

  • Procurement status (Takahashi): Told Uraguchi-san about our decision. Will order the parts soon. -> Status

• Clean work procedure
  • KAGRA should have a special meeting for clean requirements (Aso will propose to Saito-san)
• PR CAD model and assembly drawings (Hirata)
  • Need to give the rotation angle of the traverser top plate (Aso)
• Cable status (Takahashi)

  • Made a cable list -> Put a link to the excel file on Wiki. Takahashi will improve the table.

• Call for shift for assembly help (Takahashi)
  • Made a call for shift for helping the installation works
• PR2 gluing schedule (Tatsumi)
  • PR2 wire breakers have cracks
  • PR3 was transported to Kamioka
• Wire cleaning
  • Damaged one wire
• Production of additional PR winches (Akutsu)
  • Most of the parts were delivered.
  • ATC engineers is test assembling the winches (mostly complete)
• RM compensation mass
  • Design status (Fabian): Do it later.

  • Order status (Takahashi): Placed an order. Will check the delivery date -> confirm (Takahashi)

  • Need to buy screws for fixing the compensation masses. Takahashi will check the lengths of screws
  • For the RM assembly in the test hanging, SUS screws were fine (no gulling). So we will use SUS screws.
• RM EQ stop screw position (Takahashi)

  • Out sourcing: Need to send the plates to the company -> Sent 6 sets on Tue. One set remaining at the site.

• PR Optical Bench (Akutsu)
  • For PR2, we do need to raise the optical bench.
    • Delivery date for the screws: Dec. 21
    • PR2 vacuum installation will be Jan. 19
• OSEM assembly status (Akutsu)

  • 7 OSEMs sent to Kamioka http://klog.icrr.u-tokyo.ac.jp/osl/?r=431

  • OSEM screw length issue
• RM production (Takahashi)
  • Confirmation of the surface finish
• Test hanging vacuum installation
  • What needs to be done when the suspension is inside the chamber ?
    • Transfer function measurement
    • Spectrum

    • Do we need OpLev -> Yes

    • Check the orientation of the mirror
    • Check the height with laser marker

    • Peel off the first contact first -> Done

    • Practice of the suspension cleaning using the air gun
    • Inner frame modal analysis with the suspension (Takahashi)
• List of what should be changed for PR3 hanging
  • some OSEM screws (to BUMAX)
• Next week (from 12/7) plan
  • Test hanging
    • Mon:
    • Tue:
    • Wed:
    • Thu:
    • Fri:
  • PR2
    • Mon:
    • Tue:
    • Wed:
    • Thu:
    • Fri:
• Travel (Week of 12/14)
  • Takahashi: Mon-Thu
  • Shoda: Mon-Fri
  • Mark: Tue-Thu(AM)
  • Fabian: Mon-Fri
  • Okutomi: Tue-Fri
  • Fujii:
  • Ishizaki: Tue-Fri
  • Hirata:
  • Ohishi:
• Travel (Week of 12/21)
  • Takahashi:
  • Shoda:
  • Mark:
  • Fabian:
  • Okutomi:
  • Fujii:
  • Ishizaki:
  • Hirata:
  • Ohishi:

* Joris: 12/7 - 12/18

BS

• What to do with BS after iKAGRA (Aso)
  • We need to decide on the plan by the end of Dec.
• BS Assembly Frame Design (Aso, Hirata)
• BS flag design (Mark, Fabian)
• BS gluing jigs (Tatsumi)
• Not enough crane height problem (Hirata, Saito)
• IP base clamp (Fabian)
• Bread board spring (Takahashi)
• BS clean bag (Aso)

ETM

• ETM assembly frame (Aso)
  • Waiting for quotation from Mirapro (sent a reminder)
  • Optical table was ordered: delivery date 1/19

Other

• bKAGRA preparation

  • Roadmap discussion with Ando-san (Schedule Chart)

    • DGS request. They need 3 weeks of preparation time before suspension installation.
  • List of tasks for: BS, Type-A, Type-Bp modification, IMMT
• Watch dog system (Tanaka)
• GAS blade inspection by Virgo (Takahashi)
  • Waiting for shipping information:
• Request to the ATC for the next year

  • Production of the blades of the Type-A BF: We should check the consistency of the optimal load at the TAMA prototype experiment and G&M measurements (SF and TF) (Takahashi) -> Status

• Safety at the site (Takahashi, Ishizaki)

Next meeting

2015/12/18 (Fri) 13:30 -

Next F2F Meeting ?