Differences between revisions 1 and 2
Revision 1 as of 2020-07-29 06:25:48
Size: 5786
Comment:
Revision 2 as of 2020-07-30 08:11:48
Size: 3042
Comment:
Deletions are marked like this. Additions are marked like this.
Line 2: Line 2:
 * 2020/07/31(Fri) 16:00-  * 2020/07/31(Fri) 16:10-
Line 15: Line 15:
  * Yokozawa is supprted by C2C program   * Yokozawa is supported by C2C program
Line 20: Line 20:
  * Now interferometer is post-observation
   * It may continue to end of June
   * Request 1 day for PEM injection
   * IMC scattered light check by GigE camera (6/30 Kokeyama, Yokozawa)
   * Check the OMC leg vibration
   * 6/25 early morning PRFPMI lock with better alignment -> If you interested in, you can use data
  * Earthquakes at Hida area is serious
   * Frequency was reduced
   * Earthquake in Japan is frequent, suspension master guardian worked well
  * Schedule for O4 will be discuss later

 * Tasks for post-commissioning
  * Acoustic injection
   * 6/5 : Day 1 : For only REFL (remote work) -> study of nonlinearity & up/down conversion -> DAQ trouble
   * 6/11 : Day 2 : re-measurement of Day 1 (REFL) + PSL
   * Unclear : Day 3 : BS, SR, ITMX '''<<Before DRFPMI study (Jul.)>>'''
  * Scattered light
   * One of the hammering test (lower priority, open the chamber and check)
   * OMC chamber vibration RMS (lower priority, open the chamber and check)
   * IMC scattered light by GigE camera (Explained avobe)
  * Line noise investigation by PEM
   * No action from DAC, SEO and noise budget team. Maybe skipped.
  * RSE lock trial
   * PRFPMI lock recovery trial
   * New suspension damping (modal damping)
   * - 11th Sep.
  * Occasional day
   * 12th - 16th Sep.
  * Preparation for O4 work
Line 44: Line 29:
  * --( From July, (If U-tokyo level became 0.5) we can work as usual(maybe), if you have a plan to visit KAGRA site, please contact to Yokozawa first )--
Line 46: Line 30:
  * Some collaborator came to Kamioka. Please contact to Yokozawa if you plan to go to Kamioka.
Line 62: Line 47:
   * Target journal->to be discussed later (PTEP?)
   * Study of the new environmental noise investigation technique using the portable monitors and Chromebook(仮)
   * section
      1. Introduction
      2. Environmental noise
      4. Portable PEM2 : Chromebook type
       4.1 USB type PEMs <<BR>>
       4.2 Combination with Chromebook and USB tpye PEMs <<BR>>
       4.3 Recording system and offline analysis <<BR>>
       4.4 Vibration injection
      5. Examples of noise investigation
       5.1 44Hz vibration noise <<BR>>
       5.2 Sound and vibration from air conditioner and FFU <<BR>>
       5.3 Oshino-san, Shimode-san magnetic field with circuit <<BR>>
       5.4 Noise investigation at OMC chamber
      6. Conclusion
  * Acoustic reverberation paper (Washimi+Virgo) '''<<PLAN>>'''
  * Magnetic field paper (Washimi+) '''<<PLAN>>'''
  * Ground motion paper (Yokozawa+) '''<<PLAN>>'''
  * PEM summary note (Yokozawa+) '''<<PLAN>>'''
  * Other topics
   * If you have interested in, please contact to Yokozawa and Washimi first
   * We took many environmental data
    * Six Seismometer(Miyo+)
    * Many microphones and accelerometers(Yokozawa+)
    * Weather vs environment
    * Temperature vs suspension
    * Earthquake vs magnetic-field
      * e.g. [[https://ci.nii.ac.jp/naid/110003828999]]
    * Non linearity noise study
    * Line noise investigation(Yokozawa+)
Line 94: Line 48:
==== Preparation for O4 ====
 
  * Clean up the experimental area
   * Material control
   * Clean cabling
    * All PEMs will be recovered.
    * We already started the PEM recovery(回収)
    * Buy new PEMs
Line 95: Line 57:
==== Preparation for O3c / O4 ====

  * for O3c
    * Maybe, we don't need to discuss about O3c

  * Schedule for O4
   * Expanded style chief meeting was held in 6/15
    * Jul. - Aug. DRFPMI lock trial
     * Apply sensor correction to SR suspensions
    * After them, we will start the upgrading tasks
Line 108: Line 60:
    * New PEM(?)
Line 130: Line 81:
  * Yokozawa
   * Study of the 116 Hz acoustic injection to REFL table
Line 134: Line 82:
   * Progress of the acoustic injection analysis [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11777|JGW-G2011777]]    * Progress of the acoustic injection analysis

Weekly PEM meeting

Agenda

Conference issue

  • JPS meeting
    • Online meeting web

    • Yokozawa will present about the PEM activity
  • KIW7
    • The 7th KAGRA International Workshop (National Central U., Taiwan), Dec. 18-20, 2020 (F2F meeting on Dec. 17-18)
    • Yokozawa is supported by C2C program

General issue

  • Interferometer status
    • RSE lock trial
      • PRFPMI lock recovery trial
      • New suspension damping (modal damping)
      • - 11th Sep.
    • Occasional day
      • 12th - 16th Sep.
    • Preparation for O4 work
  • Working style (COVID-19 related)
    • Situation is unclear, I will explain in this meeting.
    • Some collaborator came to Kamioka. Please contact to Yokozawa if you plan to go to Kamioka.
  • Useful management tools
    • Easy communication : Slack
      • We want to start using the slack by communication. I will send the message to candidate
    • Task management : GitHub

    • Software management : GitHub

    • Papers : Overleaf

Jurnal paper issue

Details are here!

  • PTEP (2) : noise budget(K.Yamamoto)
    • Start investigation (?)
  • PTEP (3) : CAL, DET, PEM, GIF (Yokozawa) <<Submitted to CPC>>

  • Acoustic injection paper (Washimi) <<Analysis ON GOING>>

  • ICA for E-run/O3GK (Kume, Yokoyama) <<Analysis ON GOING>>

  • Portable PEMs (Yokozawa+) <<Start investigation>>

Preparation for O4

  • Clean up the experimental area
    • Material control
    • Clean cabling
      • All PEMs will be recovered.
      • We already started the PEM recovery(回収)
      • Buy new PEMs
    • PEM tasks for O4 will be discussed after this meeting with SEO
      • GND issue
      • Cabling issue
  • for O4 preparation
    • GND issue

      • We found new ground in the center area
      • We started the rack design with AEL people
    • cabling (github204)

    • ondotori (github205)

    • water fluid (github207)

    • read out of the lightning sensor (github182)

    • RF monitor
    • tiltmeter
    • RI detector
      • Rn : contact person -> Guillaume Pronostさん (ICRR, SK)

      • cosmic-ray : plastic scintillator?
      • gamma/neutron : chikauchu
    • gravity gradient (Newtonian noise)
      • Superconducting Gravimeter
      • TOBA

Analysis report

  • Washimi
    • Progress of the acoustic injection analysis
  • Fujikawa
    • Lock loss study
  • Progress of the ICA analysis
  • Omicron and hveto study(Someone)

Place for memo

KAGRA/Subgroups/PEM/Meeting/200731/Agenda (last edited 2020-07-30 20:35:12 by tatsuki.washimi)