Differences between revisions 4 and 19 (spanning 15 versions)
⇤ ← Revision 4 as of 2022-06-20 07:19:40 →
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Editor: TakaakiYokozawa
Comment:
← Revision 19 as of 2022-06-22 11:57:40 → ⇥
Size: 2364
Editor: HirotakaYuzurihara
Comment:
Deletions are marked like this. Additions are marked like this.
Line 16: Line 16:
  * Mid size baffle installation
  * ISS installation
  * High power laser installation

 * (LVK information)
  * O4a will start March 2023 [[https://observing.docs.ligo.org/plan/|web]]
Line 18: Line 25:
 * Y arm commissioning
  * IY leak test done [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21135|klog#21135]]
  * IY oplev windshield installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21192|klog#21192]]
  * End Y : Start the leak (very slowly to avoid the dust.)
   * 1 week leaking, fixing early next week [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21191|klog#21191]]

 * Center area commissioning
  * MICH fringe detected ([[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21149|klog#21149]])
  * Mirror cleaning(first contact) and mid-size baffle installation
   * PR2 : Installed
   * SR2 : Installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20205|cleaned]]
   * BS : Installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20857|cleaned]]
   * PRM : Installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=20702|cleaned]]
   * PR3 : Installed [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21082|cleaned]]
   * SR3 : Not yet [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21212|cleaned]]
   * SRM : Not yet (When replacement?) [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21208|cleaned]]
  * Others
   * ITMX glitch from ADC [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=21185|klog#21185]]
   * PR traverser limit switch install
   * Green related work
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 * Overall schedule
  * End of July - End of August : Pumping down center area
  * Sep - Commissioning
 * X arm commissioning
  * Both IR and GR cavity lock keeping
  * IX : Cooling down the duct shield TM~250 K
  * EX : Cooling down the duct and two radiation shield TM~110K
  * Finesse and TM position by TCam are ongoing
  * TMSX optical table characterization : early July : After this, we can start ASC		  * X arm cavity
  * Both IR and GR
Line 31: Line 52:
  * Pumping down started
  * EY has leak point, we will open the chamber soon
  * IR and GR lock succeeded!		   * Both IR and GR
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   * 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 51: Line 58:
   * 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
    • Mid size baffle installation
    • ISS installation
    • High power laser installation
  • (LVK information)

    • O4a will start March 2023 web

Progress of commissioning

  • Y arm commissioning

    • IY leak test done klog#21135

    • IY oplev windshield installed klog#21192

    • End Y : Start the leak (very slowly to avoid the dust.)

      • 1 week leaking, fixing early next week klog#21191

  • Center area commissioning

    • MICH fringe detected (klog#21149)

    • Mirror cleaning(first contact) and mid-size baffle installation
    • Others

      • ITMX glitch from ADC klog#21185

      • PR traverser limit switch install
      • Green related work

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)