Differences between revisions 5 and 6
Revision 5 as of 2022-06-20 07:26:03
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Revision 6 as of 2022-06-20 07:31:23
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  *
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 * Center area commissioning
  * Mirror cleaning(first contact) and mid-size baffle installation
   * PR2 : Installed
   * SR2 : Installed
   * BS : Installed
   * PRM : Installed
   * PR3 : Installed
   * SR3 : Not yet
   * SRM : Not yet (When replacement?)
  * ITMX glitch from ADC(?)
Line 33: Line 42:
  * Pumping down started
  * EY has leak point, we will open the chamber soon
  * IR and GR lock succeeded!
  * Both IR and GR
Line 38: Line 46:
   * Table configuration : ongoing
    * IFO refl table [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9238|JGWDoc9238]]
    * POP (Pick of PR2) table [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9623|JGWDoc9623]]
     * POP forward QPD installed
   * Interesting channel for X arm IR lock : [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14080|JGWDoc14080]]
  * Mirror cleaning(first contact) and mid-size baffle installation
   * PR2 : Installed
   * SR2 : Installed
   * BS : Installed
   * PRM : Installed
   * PR3 : First contact (maybe) done
   * SR3 : Not yet
   * SRM : Not yet (When replacement?)
Line 53: Line 48:
   * Interesting point
    * Long term stability check
     * Beam power, beam position, oplev monitoring
    * Glitch investigation
    * Temperature dependence
    * Relationship between PSL room
    * With PEM channels
    * (Hammering test?)
  * Suspension commissioning : ongoing
   * PR's suspension middle of June - end of June (two weeks)
  * OMC installation : done
   * Some unexpected glitch : circuit?
   * Alignment : partially done : BS fluctuation large and SRM replacement
   * TF measurement : ongoing
  * High power laser
   * Accepted to install to KAGRA site
   * When exchange the laser source : Unknown
  * ISS (Intensity Stabilization System) installation : unknown
   * Must item before closing chamber
 * Interferometer commissioning
  * X and Y arm IR cavity lock check
  * Green laser system
   * Fiber noise cancelling check
  * ISC (Interferometer Sensing and Control, LSC and ASC)
  * Next : ALS DARM lock?
  * Action items before closing chamber : Will discuss tomorrow
   * Long term stability check
    * Beam power, beam position, oplev monitoring
   * Glitch investigation
   * Temperature dependence
   * Relationship between PSL room
   * With PEM channels
   * (Hammering test?)

KAGRA Commissioning status at DET meeting

  • Date : 2022/06/20

Overall schedule

  • (In case of no trouble)
    • 6/20 - 6/24 Leak of End Y
    • 6/27 - Repair the leak point and start the pumping down
    • 6/20 - 7/1 Suspension commissioning Type-Bp
    • 7/4 - 7/8 Interferometer commissioning
    • 7/11 - 7/22 Suspension commissioning Type-B
    • 7/25 - 7/29 Acceptance check
    • 8/1 - Closing the center area
  • (LVK information)
    • O4a will start March 2023

Progress of commissioning

  • Y arm commissioning
    • IY leak test done
    • IY oplev windshield installed
  • Center area commissioning
    • Mirror cleaning(first contact) and mid-size baffle installation
      • PR2 : Installed
      • SR2 : Installed
      • BS : Installed
      • PRM : Installed
      • PR3 : Installed
      • SR3 : Not yet
      • SRM : Not yet (When replacement?)
    • ITMX glitch from ADC(?)

Interesting data

  • X arm cavity
    • Both IR and GR
  • Y arm commissioning
    • Both IR and GR
  • Center area commissioning
    • Main IR
    • IMC (Input Mode Cleaner)
      • ASC (Alignment Sensing and Control) done
      • Long term stability check
        • Beam power, beam position, oplev monitoring
      • Glitch investigation
      • Temperature dependence
      • Relationship between PSL room
      • With PEM channels
      • (Hammering test?)

KAGRA/Subgroups/DET/Meeting/220620 (last edited 2022-06-22 11:57:40 by HirotakaYuzurihara)