== Weekly PEM meeting ==
 * 2021/03/12(Fri) 17:00-
 * Regular meeting
 * Zoom2 : https://zoom.us/j/6676627462

=== Agenda ===

==== Conference issue ====
  
 * JPS meeting [[https://www.jps.or.jp/activities/meetings/annual/annual-index.php|URL]]
  * オフライン解析によるKAGRAデータの雑音除去(Kume)
 * 「第七回極低放射能技術」研究会 [[https://www.lowbg.org/ugap/ws/lb2021/index.html|URL]]
  * 落雷磁場を利用した神岡地下水分量の長期観測(鷲見, 3/25)

 * Future conferences
  * LVK meetin (online), March 15-19
  * GWADW (online), May 17-21, 2021
  * 8th KIW (online), KASI, Daejeon, Korea, July 7-9, 2021
  * GWPAW Hannover, Germany, Dec 14th-17th, 2021

If you have some presentation about PEM related, please contact to me.

 * Future meetings
  * next VK PEM meeting : 3/19 or 3/26
  * next seismic meeting with JAMSTEC : ?

==== General issue ====

 * Interferometer schedule 
  * VIS upgrade (ongoing)
  * IMC commissioning 
   * Suspension commissioning and interferometer commissioning
   * PSL recovery after black out (IMC flash detected)
   * Type-C suspension commissioning
    * Oplev recovery and calibration
   * Noise budget
   * Trial of vibration transfer function
  * InputX suspension commissioning
   * After installing new ACC
   * After IMC commissioning 

 * Sudden blackout occurred at 4th Mar.
  * Mostly recovered(DGS, vacuum and so on)
  * Need the check of circuit, PD, PEM(?) and so on 

 * GND report
  * Yokozawa reported (8th Mar. 16:00-17:00)
  * kagra04074

==== Discussion item ====

 * Start the investigation for measurement of the newtonian noise : NN meeting ([[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/201222|URL]])
  * Portable water fluid monitor
  * Permanent water fluid monitor at Yend
   * Cabling : 9th March
   * Installation : 11-12 March with company 
   * Report later

 * Start the discussion about KAGRA seismic motion ([[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/SEIS|URL]])
  * Share the information and discussion using the timeseries and spectrum plots
  * Interesting measurement
  * Tilt meter (Do not need because underground experiment?)
  * Share the information between Tilt meter measurement at SK area
  * Trun over seismometer analysis from Fujikawa-san

 * Magnetic field
  * Check them after arriving new magnetometer
  * Arrive at end of March(?)

 * Call for PEM tasks
  * This is under discussing
  * Call the todo list to KAGRA collaborator

 * New collaboration about KAGRA PEM
  * We are investigating this issue 
  * Also, discussed previous PEM meeting
  * Call the collaboration(Both KAGRA collaboration and just the collaboration)
  * If you know the interesting laboratories, please contact to us.
  
 * Contribution to PEM for joining the author list [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12435|Working list]]
  * KAGRA Environmental study (Including (future) newtonian noise measurement)
  * Noise evaluation using PEMs (Including lock loss study and offline subtraction)
  * Setting monitors (Cabling, making monitor, ondotori maintenance)
  * Others
    
==== Jurnal paper issue ====
[[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Reports/JurnalPaperIssue|Details are here!]]
  * PTEP (2) : noise budget(K.Yamamoto, Kokeyama, Washimi) [[https://docs.google.com/spreadsheets/d/1Lz5RNxdjOhdZp6CBef-USUUPmyNTrhww9a7u39W7PSI/edit?usp=sharing|Check list]], [[https://gokagra.slack.com/archives/C015M111B5G|slack]] '''<<Writing>>'''
     * NB plot has been finalised
     * PWT is writing the draft for each part
  * Acoustic injection paper (Washimi) '''<<2nd submission>>''' [[https://arxiv.org/abs/2012.09294|arXiv:2012.09294]]
    * modified version was submitted (3/5)
  * Lightening paper (Washimi) '''<<Opened in arXiv>>''' [[https://arxiv.org/abs/2103.06516|arXiv:2103.06516 ]]
  * Fractal paper (Alessandro) '''<<Submitted to Journal>>''' [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=12438|JGW-P2112438]],  [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/Seminar/210128|seminor slide]]
  * Seismic NN paper (Fransisca) '''<<Submitted to CPC>>'''
    * Microphone data -> confirmed
  * Reverberation time paper (Washimi+) '''<<Start writing>>'''
  * ICA for E-run/O3GK (Kume, Yokoyama) '''<<Analysis ON GOING>>'''
  * Portable PEMs (Yokozawa+) '''<<Start writing>>'''

==== Preparation for O4 ====

  * Global Cabling issue
   * Cleaning the center area
    * Cable diagram for IOO, ALS, ISC were done by M.Nakano
    * GND investigation for electric rack was done by T.Yokozawa
    * Combination of two progress
   * Ask company (Candidate SK service)

  * PEM cabling plan
   * BS-IYC cable rack (April)
   * New cable diagram
    * How many ADCs will be prepared? Whitening chassis?
    * Set the electric boxes for portable/permanent PEMs

  * Noise mitigation / Environment stability
   * Raise topics after starting IMC commissioning

  * PEM sensors
   * Re-install the ACCs, MICs, MAGs before commissioning start
    * Some temporal PEMs for IMC-IMM commissioning (Using ADC in IOO1 rack?) 
   * water fluid monitor
   * Magnetometers for Schumann resonance [[https://www.metronix.de/metronixweb/fileadmin/user_upload/Dokumente/Geophysiks/Induction%20Coil%20MFS-06e/FlyerMFS-06e_jap_v35.pdf|MFS-06e]]
    * Connector
    * Position
    * Measurement plan
    * Self noise evaluation
   * Infrasound monitor @ Atotsu, Mozumi, tunnel (+ Toyama?) 
   * Infrasound microphone (ACO4152NHA, 0.05 - 8000 Hz)

  * Vibration projection
   * Before closing the IMC chambers, IMC vacuum tables
   * Discussion with CAL team about A chamber

  * PEM injection
   * Acoustic injection at X/Y-end
   * Magnetic injection   

 * After O4 
   * RF monitor
   * Tiltmeter
   * RI detector
   * Newtonian noise

 * Discussion with DET members
  * Daily summary page PEM
  * Line identification
   * Yokozawa
   * VIS -> IOO -> MIF

==== Progress report ====
 * Yokozawa
  * Take over Fujikawa-san's analysis
  
 * Washimi
  * Water fluid monitor
  * RI monitor

 * Kume
   * ICA analysis related with PEM

==== Place for memo ====