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 * 2020/10/02(Fri) 17:00-  * 2020/10/09(Fri) 17:30-
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   * Continued to 7th Oct. at maximum    * Continued to 12th Oct. at maximum
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   * ALS DARM    * DRMI lock
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  * Some measurement if we can lock the DRFPMI
   * Acoustic injection with portable PEMs
   * Noise investigation
 * PEM measurement during blackout
  * Discussion in the report by Washimi [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12095|JGW-G2012095]]
  * Prepare the DAQ during blackout
  * Seismometer + magnetometer + Infrasound microphone + GND
  
 * PEM DAQ racks
  * Use only IX and IY racks
  * Move the position of IX and IY racks
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  * PEM measurement during blackout
   * Discussion in the report by Washimi [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12095|JGW-G2012095]]
   * Prepare the DAQ during blackout
   * Seismometer + magnetometer + Infrasound microphone + GND
  
  * PEM DAQ racks
   * Use only IX and IY racks
   * Move the position of IX and IY racks
 * New PEMs toward O4
  * Many microphone
   * Not only tables but also booth
  * Position of magnetometer
  * Position of seismometer
  * Additional PEMs to PSL room
   * 120Hz noise
   * glitch study
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  * New PEMs toward O4
   * Many microphone
    * Not only tables but also booth
   * Position of magnetometer
   * Position of seismometer
   * Additional PEMs to PSL room
    * 120Hz noise
    * glitch study

  * Lock loss study
   * control loop of the ETMX MNR?

  * If you have new idea or discussion item, please write here
 * If you have new idea or discussion item, please write here
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  * FFU glitch discussion [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15137|klog15137]]
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 * Fujikawa
   * Lock loss study
   * Kamioka visiting plan

Weekly PEM meeting

Agenda

Conference issue

  • KIW7
    • The 7th KAGRA International Workshop (National Central U., Taiwan), Dec. 18-20, 2020 (F2F meeting on Dec. 17-18)
    • Maybe online style for Japanese member
  • (Next JPS meeting is also online-meeting) 

General issue

  • Interferometer status
    • RSE lock trial
      • Continued to 12th Oct. at maximum
      • New suspension damping (modal damping)
      • DRMI lock
      • More stable DRMI operation than before.
  • Interferometer schedule JGW12041

    • - 12th Oct. RSE lock trial
    • 5th Oct. - 19th Oct. Start the cleaning
    • 15th Oct. - 21st Oct. Warming up cryogenic ducts(IX, IY, EY)
    • 14th Oct. blackout (13th, 15th working date for blackout)
    • 19th Oct. - 23rd Oct. Clean work by company
    • 22nd Oct. - 25th Oct. break vacuum
    • 26th Oct. - Open chambers
  • Working style (COVID-19 related)
    • Some collaborator came to Kamioka. Please contact to Yokozawa if you plan to go to Kamioka.
  • KAKENHI proposal limit
    • NAOJ : Oct. 8
    • ICRR : Mostly end of Oct.(4th week deadline)
    • JSPS : Nov. 5 16:30 JST (final limit)

Discussion item

  • PEM measurement during blackout
    • Discussion in the report by Washimi JGW-G2012095

    • Prepare the DAQ during blackout
    • Seismometer + magnetometer + Infrasound microphone + GND
  • PEM DAQ racks
    • Use only IX and IY racks
    • Move the position of IX and IY racks
  • New PEMs toward O4
    • Many microphone
      • Not only tables but also booth
    • Position of magnetometer
    • Position of seismometer
    • Additional PEMs to PSL room
      • 120Hz noise
      • glitch study
  • If you have new idea or discussion item, please write here

Jurnal paper issue

Details are here!

  • PTEP (2) : noise budget(K.Yamamoto) Check list, slack <<Analysis is ongoing>>

    • Environmental part
      • Acoustic noise : Refer our PEM injection paper.
      • Seismic noise : summarise the actual seismic nois during O3GK? (who?)
      • OMC leg vibration : 12th - 16th Sep. ?

      • AC power lines : Coherence analysis is done (http://klog.icrr.u-tokyo.ac.jp/osl/?r=14848, Washimi)

      • Magnetic noise : skipped in this paper?
      • Newtonian : seismic newtonian -> from PTEP1 (or Francisca?) / water fluid newtonian -> skipped / air density -> skipped

    • We will held a noise budget meeting to summarize the current status, before the starting of heavy mine work. Details will be announced by KYamamoto-san(ToyamaU) soon later.
  • PTEP (3) : CAL, DET, PEM, GIF (Yokozawa) <<Submitted>>

  • Acoustic injection paper (Washimi) <<WRITING>>

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

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

Preparation for O4

  • PEM tasks for O4 will be discussed after this meeting with SEO
    • GND issue
    • Cabling issue
    • Cleaning the center area
  • Temperature control
    • Cooler ON, compressor ON, FFU ON, ...
    • IYC FFU glitch
    • Re-start the FFU on work after 7th Oct.
  • PEM Rack arrange
    • There are discussion about DAQ of the KAGRA PEM channels. PEM channels may be assigned in the IX0 and IY0 racks.
      • Less effect from other models(less data loss)
      • Change the place of the IX0 and IY0 rack (next to MCF and BS chamber?)
      • plan : GoogleSpreadsheet

  • for O4 preparation
    • GND issue

      • We measured the potential difference for SRM and PR2 rack
        • Need the investigation more
    • water fluid (github207)

      • Discussion with Furuta-san & a company is started

      • meeting with company persons (2) : 10/7 13:00~
    • read out of the lightning sensor (github182)

    • Infrasound monitor @ Atotsu, Mozumi, tunnel (+ Toyama?)
      • if accepted
    • PEM injection for O4
      • Large speaker @ End station
      • Magnetic injection by large coil
  • After O4
    • RF monitor
    • Tiltmeter
    • RI detector
      • Rn : contact person -> Guillaume Pronostさん (ICRR, SK)

      • cosmic-ray : plastic scintillator?
      • gamma/neutron : 新学術地下宇宙
      • start from a geiger counter?
    • Newtonian noise
      • Accelerometer for wall
      • Relative temperature monitor
      • Many seismometers
      • Superconducting Gravimeter
      • TOBA

Progress report

  • Yokozawa
    • Preparation for blackout GitHub214

    • Blasting at the atotsu area.
  • Washimi
    • Aacoustic injection paper overleaf

      • writing now (day by day)
  • Kume
    • ICA analysis related with PEM

Place for memo

KAGRA/Subgroups/PEM/Meeting/201009/Agenda (last edited 2020-10-09 15:49:59 by TakaakiYokozawa)