Differences between revisions 15 and 16
⇤ ← Revision 15 as of 2010-07-15 12:25:06 →
Size: 2403
Editor: KojiArai
Comment:
← Revision 16 as of 2012-01-03 23:02:43 → ⇥
Size: 2508
Editor: localhost
Comment: converted to 1.6 markup
Deletions are marked like this. Additions are marked like this.
Line 2: Line 2:
attachment:TAC_2010_Jul.pdf [[attachment:TAC_2010_Jul.pdf]]
Line 4: Line 4:
[https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=13490 TAC Slides in the DCC] [[https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=13490|TAC Slides in the DCC]]
Line 6: Line 6:
July 15th, 2010 [[BR]] 9:00 AM PDT [[BR]] Call in instructions:[[BR]] (866) 380 - 5536[[BR]] International: (816) 249 - 4731[[BR]] Code: 6263958709[[BR]] July 15th, 2010 <<BR>> 9:00 AM PDT <<BR>> Call in instructions:<<BR>> (866) 380 - 5536<<BR>> International: (816) 249 - 4731<<BR>> Code: 6263958709<<BR>>
Line 17: Line 17:
  1. [https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=9237 Rob's Thesis]   1. [[https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=9237|Rob's Thesis]]
Line 67: Line 67:
 <<ImageLink(aligocomm.png,width=800)>>  [[attachment:aligocomm.png|{{attachment:aligocomm.png||width=800}}]]

July 2010 Meeting of the 40m Technical Advisory Committee

TAC_2010_Jul.pdf

TAC Slides in the DCC

July 15th, 2010
9:00 AM PDT
Call in instructions:
(866) 380 - 5536
International: (816) 249 - 4731
Code: 6263958709

  1. Agenda

  2. Current Status / Recent Work B. Upgrade Plans

II. Recent Status

  1. Personnel Changes
    1. Rob Ward: 1/2004 - 3/2010 (gone to Paris - APC / Barsuglia)

    2. Rob's Thesis

III. Upgrade

  1. Purpose of the upgrade
    1. AdvLIGO LSC / AdVLIGO testbed (green/CDS)
    2. Advanced techniques
  2. Current status of the upgrade preparation
    1. Mechanics -
      • Done: SOSs for new, light test masses
      • Done: TT suspensions for PRC
        • ANU tip/tilt: LLO Blades + TAMA/ANU compliant eddy current damping
      • Done: In-vac mounts for green
      • To be done: Supplimental parts for TTs, some in-vac mechanics
    2. Optics
      • Done: Have the SRM / ITMs (dichroic). PRMs polished - coating waits for arm loss measurement
      • Done: optical layout
        • MMT design (Jenne): histograms, alignment orthogonality

        • Optics - Gooch & Housego magic HR

      • Done: smaller aux optics, folding mirrors (G&H), and green mirrors, all in hand

      • In progress: ETMs are being polished / coated. ETD = September
    3. Electronics (RF system)
      • Done: Designed the multiple frequency RF system to preserve the phase noise performance of the oscillator
        • RF signal distribution (oscillators, splitters, amplifiers, etc.)
        • Triple-Resonant EOM (New Focus KTP + resonant circuit)
      • 5 of 10 PDs tuned, characterized and made shot noise limited
      • To be done: Finish the remaining 5 PDs / Install the photodiodes on the tables
    4. Green beam injection (unstabilized fiber + green injection from the ends)
      • Done: End table constructed / fringe lock achieved
    5. CDS -
      • Done: Demonstrated the control system of one suspension including the cavity lock.
        • Layout diagram
        • 90% of H/Ws at the 40m
      • To be done: Integration of the system
        • Local control tests
        • Integration tests
    6. PSL laser/table upgrade
  3. Upgrade Plans
    1. upgrading order and rough schedule

IV. End

  • attachment:aligocomm.png

TAC_Meeting-Jul_10 (last edited 2012-01-03 23:02:43 by localhost)