• KAGRA
• Subgroups
• PEM
• Meeting
• 210312
• Agenda

Weekly PEM meeting

• 2021/03/12(Fri) 17:00-
• Regular meeting

• Zoom2 : https://zoom.us/j/6676627462

Agenda

Conference issue

• JPS meeting 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 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 (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 (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 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

Details are here!

• PTEP (2) : noise budget(K.Yamamoto, Kokeyama, Washimi) Check list, slack <<Writing>>

  • NB plot has been finalised
  • PWT is writing the draft for each part

• Acoustic injection paper (Washimi) <<2nd submission>> arXiv:2012.09294

  • modified version was submitted (3/5)

• Lightening paper (Washimi) <<Opened in arXiv>> arXiv:2103.06516

• Fractal paper (Alessandro) <<Submitted to Journal>> JGW-P2112438, 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 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