Differences between revisions 3 and 51 (spanning 48 versions)

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
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) 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

-  ⇤ ← Revision 3 as of 2011-06-23 01:46:28 → 
  Size: 182
  Editor: JamieRollins
  Comment:
+   ← Revision 51 as of 2012-04-04 22:44:37 → ⇥
  Size: 2177
  Editor: JamesonrollinsATligoDOTorg
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 3:
-== 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)

(7) Review IP{ANG,POS} alignment/closeup proceedure
-Line 7:
+Line 50:
+ * [[vent/201107|2011 July]]
-Line 8:
+Line 53:
- * [[Upgrade 09|IFO Upgrade 2009-2010]]
+ * [[Optics_Cleaning| 2009 Dec]]
-Line 10:
+Line 55:
+ * [[Upgrade_09|IFO Upgrade 2009-2010]]

Vent plans

Prep for next vent

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