Differences between revisions 4 and 5
⇤ ← Revision 4 as of 2022-06-20 07:19:40 →
Size: 2916
Editor: TakaakiYokozawa
Comment:
← Revision 5 as of 2022-06-20 07:26:03 → ⇥
Size: 2683
Editor: TakaakiYokozawa
Comment:
Deletions are marked like this. Additions are marked like this.
Line 16: Line 16:
 * (LVK information)
  * O4a will start March 2023
Line 17: Line 20:

 * Y arm commissioning
  * IY leak test done
  * IY oplev windshield installed
  *
Line 21: Line 29:
 * 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

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

Interesting data

  • X arm cavity
    • Both IR and GR
  • Y arm commissioning
    • Pumping down started
    • EY has leak point, we will open the chamber soon
    • IR and GR lock succeeded!
  • Center area commissioning
    • Main IR
      • Table configuration : ongoing

      • Interesting channel for X arm IR lock : 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?)
    • IMC (Input Mode Cleaner)
      • ASC (Alignment Sensing and Control) done
      • 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

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