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| == Current == * [[vent/201107|2011 July]] |
== Prep for next vent == (1) Dichroic mirror for recycling cavities (Jamie) * [[https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=87589|spec in DCC]] * wedge angle = 2 deg * quotes: * [[https://wiki-40m.ligo.caltech.edu/vent?action=AttachFile&do=get&target=ATF.pdf|ATF]] * '''''[[https://wiki-40m.ligo.caltech.edu/vent?action=AttachFile&do=get&target=Laseroptik.pdf|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_Layout#PR3SR3|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 * [[https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=77367|hexagonal]] * [[https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=77543|diamond shaped]] * [[https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=77545|diamond shaped (2inch)]] * '''''being baked...''''' (3) OSEM mount screws * Hex-top, longer, sliver-plated * Qty = 100 * No-plastic * '''''[[http://nodus.ligo.caltech.edu:8080/40m/6472|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) Mode-matching telescope adjustments (Jenne/Suresh) * Need to determine what exactly the problem is. * What needs to be moved? (6) Cavity scattering measurements? (Jan) |
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* [[vent/201107|2011 July]] |
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| * [[Optics_Cleaning|Vent Dec 2009]] | * [[Optics_Cleaning| 2009 Dec]] |
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| * [[Upgrade 09|IFO Upgrade 2009-2010]] | * [[Upgrade_09|IFO Upgrade 2009-2010]] |
Vent plans
Prep for next vent
(1) Dichroic mirror for recycling cavities (Jamie)
- wedge angle = 2 deg
- quotes:
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
order placed... (ETA still unknown)
(2) Black glass beam dumps
- Large baffle style covers for the suspensions
- Small V-shape pieces for generic purpose
being baked...
(3) OSEM mount screws
- Hex-top, longer, sliver-plated
- Qty = 100
- No-plastic
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) Mode-matching telescope adjustments (Jenne/Suresh)
- Need to determine what exactly the problem is.
- What needs to be moved?
(6) Cavity scattering measurements? (Jan)