Vent plans

Prep for next vent

(1) Dichroic mirror for recycling cavities (Kiwamu)

• Figure out required spec

  • spec in DCC

  • wedge angle = 2 deg
  • dichroic mirror quotes:

    • ATF Laseroptik (no wedge), Laseroptik (new w/ 2 deg wedge)

    • 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

• Get a quote from ATF.
• Qty = 3 (2 + 1 spare )
• Start ordering (in a week)

(2) Black glass beam dumps (Koji)

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

  • hexagonal

  • diamond shaped

  • diamond shaped (2inch)

(3) OSEM mount screws (Steve)

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

• http://131.215.115.52:8080/40m/6232

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

• Electronics
• Cables including vacuum-compatible ones and the non-vacuum ones
• Prepare mirrors
• Assembly and baking
• Prepare feedthrough connectors
• Digital controls

(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