Differences between revisions 12 and 68 (spanning 56 versions)
⇤ ← Revision 12 as of 2012-02-10 02:06:48 →
Size: 1293
Editor: KiwamuizumiATligoDOTorg
Comment:
← Revision 68 as of 2012-07-17 22:42:35 → ⇥
Size: 3569
Editor: JamesonrollinsATligoDOTorg
Comment:
Deletions are marked like this. Additions are marked like this.
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(1) Dichroic mirror for recycling cavities (Kiwamu)
 * Figure out required spec
    * wedge angle = 2 deg
    * optical layout needs to be modified. For more details, see [[Optical_Layout#PR3SR3 | the optical layout page]].
 * Get a quote from ATF. [[attachment:firstdraft_spec.pdf| first draft of the spec]]
 * Qty = 3 (2 + 1 spare )
 * Start ordering (in a week)		 (1) Dichroic mirror for recycling cavities
 * [[https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=87589|spec in DCC]]
 * 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]]
 * --([[http://nodus.ligo.caltech.edu:8080/40m/6907|optics in hand]])--
 * __'''''phase map of mirror, in and out of tip-tilt mounts'''''__
   * '''''what resolution do we need? Need to measure curvature.'''''
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(2) Black glass beam dumps (Koji) (2) Active tip-tilts (Suresh/Jamie)
 * --(Suresh is going to LHO April 15-25 for assembly/shipping of tip-tilts)--
 * tip-tilts:
    * --(tip-tilts from LHO)--
    * --(bake)--
    * --(assemble)--
    * add mirrors
    * level
 * in-vac cables (quadrapuses)
    * __'''''ship parts to RND Cables'''''__
    * __'''''place order with RND Cables'''''__
    * bake
 * electronics:
    * gather components:
      * DAC
      * anti-image filters
      * dewhite filters
      * coil drivers
      * eurocrate
      * cables
    * install
    * test in DAQ

(3) Black glass beam dumps
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 * Need a discussion    * [[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)]]
 * --(manufacture)--
 * pedestals, clamps?
 * '''''bake'''''
 * assemble
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(3) OSEM mount screws (Jenne)
 * Hex-top, longer, sliver-plated
 * Qty = 100
 * No-plastic		 (4) OSEM mount screws
 * requirements:
   * Hex-top, longer, sliver-plated
   * Qty = 100
   * No-plastic
 * '''[[http://nodus.ligo.caltech.edu:8080/40m/6472|final design]]'''
 * --(manufacture)--
 * --(bake)--
 * '''ready to install'''
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(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) New periscope plate
  * --(manufacture)--
  * --(bake)--
  * '''ready to install'''
  * __'''''need shorter pedestals for green PBS and beam dump'''''__
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(5) OMC activation (Jenne)
 * Calculate the mode matching solutions and prepare appropriate telescopes
 * Draw optical layout
 * Digital controls		 (6) Cavity scattering measurements? (Jan)
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(6) OSEM upgrade (somebody)
 * Need a discussion		 (7) Review IP{ANG,POS} alignment/closeup proceedure

== tip-tilt wiring ==

{{attachment:40m-tt-wiring.svg}}

relevant pictures:
 * BSC table, from north, above output PZT0: https://picasaweb.google.com/foteee/BSchamber_general_2July2012#5760738286971644386, https://picasaweb.google.com/foteee/InVacWork4Aug2011#5637286023354525762
   * '''''Do we have 3 available 25-pin connectors on BSC table??'''''
 * IOO table, from west, through AC, input PZT0 detail: https://picasaweb.google.com/foteee/InVacWorkNov232010#5544001991913055442, https://picasaweb.google.com/foteee/InVacWorkNov232010#5544002001413250658
   * '''''It looks like we have (or will have) 1 available 25-pin connector on IOO, which is all we need!'''''
 * OMC table, from east, through AC, output PZT1 detail: https://picasaweb.google.com/foteee/InVacWork4Aug2011#5637288817950887378, https://picasaweb.google.com/foteee/InVacWork4Aug2011#5637288262639879746
   * '''''unclear what is available here'''''

Vent plans

Prep for next vent

(1) Dichroic mirror for recycling cavities

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

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

  • tip-tilts:

    • tip-tilts from LHO

    • bake

    • assemble

    • add mirrors
    • level
  • in-vac cables (quadrapuses)

    • ship parts to RND Cables

    • place order with RND Cables

    • bake
  • electronics:
    • gather components:
      • DAC
      • anti-image filters
      • dewhite filters
      • coil drivers
      • eurocrate
      • cables
    • install
    • test in DAQ

(3) Black glass beam dumps

(4) OSEM mount screws

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

  • final design

  • manufacture

  • bake

  • ready to install

(5) New periscope plate

  • manufacture

  • bake

  • ready to install

  • need shorter pedestals for green PBS and beam dump

(6) Cavity scattering measurements? (Jan)

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

tip-tilt wiring

40m-tt-wiring.svg

relevant pictures:

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