Vent plans

Prep for next vent

(1) Dichroic mirror for recycling cavities

• spec in DCC

• quotes:

  • ATF

  • Laseroptik (final)

    • note: 2 deg wedge quote has Fused Silica grade F = 5 ppm homogeneity & micro roughness 0.3 nm RMS, Rana OKed both, 3 wks delivery, Jamie takes care of ordering

• Optical table layout needs to be modified

• optics in hand

• phase map of mirror, in and out of tip-tilt mounts

  • what resolution do we need? Need to measure curvature.

(2) Active tip-tilts (Suresh/Jamie)

• Suresh is going to LHO April 15-25 for assembly/shipping of tip-tilts

• tip-tilts:

  • tip-tilts from LHO

  • bake

  • assemble

  • add mirrors
  • level
• in-vac cables (quadrapuses)

  • ship parts to RND Cables

  • place order with RND Cables

  • bake
• electronics:
  • gather components:
    • DAC
    • anti-image filters
    • dewhite filters
    • coil drivers
    • eurocrate
    • cables
  • install
  • test in DAQ

(3) Black glass beam dumps

• Large baffle style covers for the suspensions
• Small V-shape pieces for generic purpose

  • hexagonal

  • diamond shaped

  • diamond shaped (2inch)

• manufacture

• pedestals, clamps?

• bake

• assemble

(4) OSEM mount screws

• requirements:
  • Hex-top, longer, sliver-plated
  • Qty = 100
  • No-plastic

• final design

• manufacture

• bake

• ready to install

(5) New periscope plate

• manufacture

• bake

• ready to install

• need shorter pedestals for green PBS and beam dump

(6) Cavity scattering measurements? (Jan)

(7) Review IP{ANG,POS} alignment/closeup proceedure

tip-tilt wiring

relevant pictures:

• https://picasaweb.google.com/foteee/BSchamber_general_2July2012#5760738286971644386

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