Differences between revisions 2 and 38 (spanning 36 versions)
Revision 2 as of 2011-06-23 01:46:10
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Editor: JamieRollins
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Revision 38 as of 2012-03-28 22:19:48
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== Prep for next vent ==

(1) Dichroic mirror for recycling cavities (Kiwamu)
 * Figure out required spec
    * [[https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=87589|spec in DCC]]
    * wedge angle = 2 deg
    * dichroic mirror 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 (no wedge)]], [[https://wiki-40m.ligo.caltech.edu/vent?action=AttachFile&do=get&target=Laseroptik2dw.pdf|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, Jamie takes care of oredring

    * [[Optical_Layout#PR3SR3|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
   * [[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)]]

(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 ==
Line 4: Line 52:
 * [[Vent_Jul_2010|2010 July]]
 * [[Optics_Cleaning| 2009 Dec]]
 * [[Vent_Sep_2006|2006 September]]
Line 5: Line 56:
 * [[Vent_Jul_2010|2010 July]]
* [[Upgrade 09|IFO Upgrade 2009-2010]]
 * [[Vent_Sep_2006|2006 September]]
 * [[Upgrade_09|IFO Upgrade 2009-2010]]

Vent plans

Prep for next vent

(1) Dichroic mirror for recycling cavities (Kiwamu)

(2) Black glass beam dumps (Koji)

(3) OSEM mount screws (Steve)

(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

vent (last edited 2021-10-27 19:08:20 by AnchalguptaATligoDOTorg)