Differences between revisions 2 and 7 (spanning 5 versions)
Revision 2 as of 2012-10-22 22:23:30
Size: 151
Comment:
Revision 7 as of 2012-10-23 23:54:09
Size: 1463
Comment:
Deletions are marked like this. Additions are marked like this.
Line 3: Line 3:
 * Turn OFF PZT high voltage
Line 7: Line 8:
 * Put input PZTs in center of range.
 * Make sure beams are centered on
 * --(Turn PZT high voltage ON)--
 * --(Put input PZTs in center of range.)--

 * Align Y arm PLUS PR2/3:
   * put alignment targets on ITMY/ETMY cages
   * use alignment ruler for PR2/3
   * using PZT1/2, iteratively:
     * center beam on ITMY
     * center beam on ETMY
     * center beam on PR2/3
       * use PR2/3 hysteresis to adjust pitch of PR2/3
   * flashes in Y trans

 * Center beam on PRM:
   * height should be constrained at this point based on PR2/3 centering and Y arm alignment
   * move PRM cage if misaligned in yaw
   * PRM retro-reflection should come out REFL cleanly

 * Center beam on BS (should not need adjusting):
   * put alignment target on BS

 * Align X arm:
   * put alignment targets on ITMX/ETMX cages
   * use BS to center beam on ETMX
   * ITMX height should be constrained by BS/ETMX
   * adjust ITMX cage if misaligned in YAW
   * flashes in X trans

 * Align SRC
   * check beam centering on SR3/2/M
   * adjust SRM retro-reflection for centered return beam on BS

 * Center beam on all AS optics

 * Make sure REFL is clear
   * dither PRM, see motion on AP tables
 * Make sure AS is clear
   * dither BS/ITM, see motion on AP tables

 * Using IPANG/POS pick-off mirrors, center beams on:
Line 11: Line 50:

 * Check all OpLevs centered, in and out of vacuum

 * Turn PZT high voltage OFF

Vent checklists

  • Turn OFF PZT high voltage

Closeup checklist

  • Turn PZT high voltage ON

  • Put input PZTs in center of range.

  • Align Y arm PLUS PR2/3:
    • put alignment targets on ITMY/ETMY cages
    • use alignment ruler for PR2/3
    • using PZT1/2, iteratively:
      • center beam on ITMY
      • center beam on ETMY
      • center beam on PR2/3
        • use PR2/3 hysteresis to adjust pitch of PR2/3
    • flashes in Y trans
  • Center beam on PRM:
    • height should be constrained at this point based on PR2/3 centering and Y arm alignment
    • move PRM cage if misaligned in yaw
    • PRM retro-reflection should come out REFL cleanly
  • Center beam on BS (should not need adjusting):
    • put alignment target on BS
  • Align X arm:
    • put alignment targets on ITMX/ETMX cages
    • use BS to center beam on ETMX
    • ITMX height should be constrained by BS/ETMX
    • adjust ITMX cage if misaligned in YAW
    • flashes in X trans
  • Align SRC
    • check beam centering on SR3/2/M
    • adjust SRM retro-reflection for centered return beam on BS
  • Center beam on all AS optics
  • Make sure REFL is clear
    • dither PRM, see motion on AP tables
  • Make sure AS is clear
    • dither BS/ITM, see motion on AP tables
  • Using IPANG/POS pick-off mirrors, center beams on:
    • IPPOS
    • IPANG
  • Check all OpLevs centered, in and out of vacuum

  • Turn PZT high voltage OFF

vent/checklist (last edited 2018-11-20 06:17:08 by GautamvenugopalanATligoDOTorg)