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 * 2020/06/12v(Fri) 16:00-  * 2020/06/26(Fri) 16:00-
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 * KIW7
  * The 7th KAGRA International Workshop (National Central U., Taiwan), Dec. 18-20, 2020 (F2F meeting on Dec. 17-18)
  * Yokozawa is supprted by C2C program
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  * Now interferometer is "suspend mode" but post-observation
   * 6/1-6/5 Suspension noise budget, PEM injection
   * 6/8-6/12 Interferometer parameter measurements
  * 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
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   * But there are many earthquakes in Japan.    * Earthquake in Japan is frequent, suspension master guardian worked well
  * Schedule for O4 will be discuss later
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  * Vibration measurement for OpLevs (+Ushiba, 6/1,4)-> Done
   * But, we need to check the accelerometer noise level.
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   * IMC scattered light by GigE camera (Explained avobe)
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  * We can do data analysis in your home. Let's check PEM data!   * 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
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   * We want to start using the slack by communication. I will send the message to candidate
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   * PTEP (Overview of KAGRA : (3) Detector characterization, calibration, physical environment, and data quality)[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11664|klog11664]]    * PTEP (Overview of KAGRA : (3) Calibration, detector characterization, physical environment, and geophysics interferometer)[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11664|klog11664]]
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  * PTEP (2) noise budget
   * Start investigation (?)
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    * Now, the priority of O3c is lower. LVK discussed we should move to O4 preparation soon.
    * Ondotori maintenance : PSL2, MCF, IXV, IXA, EXA, COOLERs, CRYDR
      *[[https://www.icrr.u-tokyo.ac.jp/~washimi/KAGRA/SEM/fig_RT/]]
    * FFU operation & particle counter (if we open the OMC)
    * Maybe, we don't need to discuss about O3c
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  * 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
   * PEM tasks for O4 will be discussed after this meeting with SEO
    * GND issue
    * Cabling issue
    * New PEM(?)
 
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     * We started the rack design with AEL people
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   * Study of the 116 Hz acoustic injection to REFL table[[attachment:PEM_meeting_200612.pdf|pdf]]    * Study of the 116 Hz acoustic injection to REFL table
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   * Progress of the acoustic injection analysis [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11754|pdf]]    * Progress of the acoustic injection analysis

  * Fujikawa
   * Lock loss study

  * Progress of the ICA 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 supprted by C2C program

General issue

  • Interferometer status
    • 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
      • Unclear : Day 3 : For each booth (mine work) -> noise budget

    • 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.
  • Working style (COVID-19 related)
    • 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
  • 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

  • KAGRA summary paper(Yokozawa) <<Submitted to CPC>>

    • Part of the KAGRA overview paper
    • PTEP (Overview of KAGRA : (3) Calibration, detector characterization, physical environment, and geophysics interferometer)klog11664

      • Installation
      • Technical issue
  • Acoustic injection paper (Washimi) <<ON GOING>>

    • Target journal : Classical and Quantum Gravity
    • Request 3+8 hours data taking to commissioning
  • PTEP (2) noise budget
    • Start investigation (?)
  • Portable PEMs (Yokozawa+) '<<Start investigation>>

    • 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
      3. Portable PEM2 : Chromebook type
        • 4.1 USB type PEMs 4.2 Combination with Chromebook and USB tpye PEMs 4.3 Recording system and offline analysis 4.4 Vibration injection
      4. Examples of noise investigation
        • 5.1 44Hz vibration noise 5.2 Sound and vibration from air conditioner and FFU 5.3 Oshino-san, Shimode-san magnetic field with circuit 5.4 Noise investigation at OMC chamber
      5. Conclusion
  • Ground motion paper (Yokozawa+)
    • Technical note
    • Just for memo(忘備録)
    • If we can summary for special issue, we will start the discussion for journal paper
      • Lock loss study by earthquake
      • Micro-seismic motion
      • Seasonal ground motion
      • Newtonian noise
      • Baseline compensation
      • Human activity and its effect
      • etc.
  • PEM summary note (Yokozawa+)
    • Just for memo, technical note
    • What we did toward the observation
    • If we can summary for special issue, we will start the discussion for journal paper
      • PEM map
      • Lock loss study
      • Scattered light
      • etc.
  • Acoustic reverberation paper (Washimi+Virgo)
    • KAGRA data & Virgo data

    • need more analysis (March data in Virgo)
  • Magnetic field paper (Washimi+)
    • Target journal->to be discussed later

    • section
      1. Introduction
      2. 1-year Geomagnetism in underground
      3. 1-year Schumann resonance in underground
      4. Mag. field in EXC chamber
      5. Coherence between PRFPMI and MAGs
      6. Lightning effect on PRFPMI (3/22 event)
      7. Conclusion
  • Other topic
    • 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
      • Non linearity noise study
      • Line noise investigation(Yokozawa+)
      • ICA analysis for E-run/O3GK (Kume, Yokoyama)

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
    • PEM tasks for O4 will be discussed after this meeting with SEO
      • GND issue
      • Cabling issue
      • New PEM(?)
  • 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

  • Yokozawa
    • Study of the 116 Hz acoustic injection to REFL table
  • 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/200626/Agenda (last edited 2020-06-26 15:43:27 by tatsuki.washimi)