40m upgrade installation plan

Main optics team

• 3/16-19 Pre-vent works

  • Tuning of the MC servo ~ low power MC test
  • End X/Y transmon optics relocations ~ making spaces for green
  • ITM pointing preparations ~ green/red pointers at the both ends

• 3/19 Power shutdown preparation

• 3/20 Power shutdown

• 3/22 Power shutdown recovery

  • System recovery from power shutdown
  • Check MC SOS status

    • Low power MC mode ~ P(intra_cav)<10W at the resonance (~10mW incident)

  • Pre-vent check list
    • PZT HV / Oplevs / etc

• 3/23 Vent

  • ITM pointing preparations? (green/red pointers at the both ends)

• ITM placement

  • ==>Small Optics Suspension

  • Placement procedure

• MMT placement

  • What to do before the MMT placement?
  • Optics delivery (Shipping Feb 25) / baking
  • corridor projection test

• Initial Pointing adjustment

• SRM/PRM/BS placement

  • What to do before the SRM/PRM/BS placement?
  • TT
    • purchase magnets (small/large)
• Closing up the vacuum

Suspension preparation

• 3/16-26 Small Optics Suspension

  • gluing test
  • magnet-dumbbell gluing
  • dumbbell-mirror gluing
  • mirror hanging

• TT Suspension

  • small parts drawings
    • ECDs
    • wire jig
  • cleaning

Green team

• before vent

  • relocation of existing optics at the end table -take 1.5day

• during vent

  • set up the green stuff onto the end table
  • align the green laser to the cavity (how to ?)

  • mode matching of the green laser to the cavity (on the table / corridor projection test) ==> sliding mount

• after closing the tanks

  • recover IP-ANG and optical levers

CDS team

RF team

PSL table upgrade

• Laser delivery (done)