Vent plans

Prep for next vent

(1) Dichroic mirror for recycling cavities (Jamie)

• spec in DCC

• wedge angle = 2 deg
• 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

• order placed... (ETA still unknown)

(2) Black glass beam dumps

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

  • hexagonal

  • diamond shaped

  • diamond shaped (2inch)

• being baked...

(3) OSEM mount screws

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

• final design

• manufactured and being baked...

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

• to get:
  • tip-tilts from LHO
  • Electronics
  • Cables including vacuum-compatible ones and the non-vacuum ones
  • Prepare mirrors
  • Assembly and baking
  • Prepare feedthrough connectors
  • Digital controls

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

(5) OMC activation (Jenne)

• Calculate the mode matching solutions and prepare appropriate telescopes
• Draw optical layout
• Digital controls

(6) OSEM upgrade (somebody)

• Need a discussion

Previous

• 2011 July

• 2010 July

• 2009 Dec

• 2006 September

• IFO Upgrade 2009-2010