Vent plans

Prep for next vent

(1) Dichroic mirror for recycling cavities (Jamie)

• 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

• We have mirrors in hand!

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

(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

• baked

• Ready to install

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

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

• We have tip-tilts from LHO

  • baked

  • assembled
• Needed electronics:
  • DAC?
  • anti-image filters?
  • dewhite filters?
  • coil drivers?
  • eurocrate?

• Need in vacuum-compatible ones and the non-vacuum ones

• Full assembly with mirrors
• Prepare feedthrough connectors
• Digital controls

(5) Mode-matching telescope adjustments (Jenne/Suresh)

• Need to determine what exactly the problem is.
  • What needs to be moved?

(6) Cavity scattering measurements? (Jan)

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

Previous

• 2011 July

• 2010 July

• 2009 Dec

• 2006 September

• IFO Upgrade 2009-2010