Weekly PEM meeting

• 2021/03/05(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.

General issue

• Interferometer schedule
  • VIS upgrade (ongoing)
  • IMC-IMM commissioning (From Next week?)
    • Suspension commissioning and interferometer commissioning
    • Type-C suspension commissioning
    • Noise budget
    • Trial of vibration transfer function
  • IYC experience (completed)
  • InputX suspension commissioning
• Sudden blackout occurred at 4th Mar.
  • Mostly recovered(DGS, vacuum and so on)
  • Need the check of circuit, PD, PEM(?) and so on

• Evaluation meeting URL

  • Need more time for interferometer evaluation
    • Coupling with environmental noise
    • Eigen frequencies
    • Seismic, water flow
  • About noise budget (PEM???)
    • Take care for interferometer configuration, calibration
    • Pick up information
    • Overplotting
  • PEM circuits
    • Reducing orignal circuits
  • PEM cabling
    • Now considering the new cable diagram

Discussion item

• Start the investigation for measurement of the newtonian noise : NN meeting (URL)

  • Portable water fluid monitor
  • Permanent water fluid monitor at Yend
    • March 8-12

• 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?)
• Magnetic field
  • TBD

• Discussion for particle counters JGW-G2112501

  • ISO class1 measurable particle counter at the entrance of PSL room
    • Before measurement, we need to measure with other particle counter
  • Effect of KOACH filter
  • Floor measurement

  • Discussion 1/29 memo

• 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

• PTEP (3) : CAL, DET, PEM, GIF (Yokozawa) <<Published>> JGW-P2011664

• Acoustic injection paper (Washimi) <<1ts iteration>> JGW-P2012122

  • dead line : Mar. 9

• Lightening paper (Washimi) <<Submitted to CPC>> JGW-P2112426, JGW-G2112504

  • playground data application.

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

• Seismic NN paper (Fransisca) <<DRAFT CIRCULATION>>

  • 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

• 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
• PEM cabling plan
  • BS-IYC cable rack (March or April?)
  • New cable diagram
    • How many ADCs will be prepared? Whitening chassis?
    • Set the electric boxes for portable/permanent PEMs
• Noise mitigation / Environment stability
  • Temperature control
    • IYC dry air, temperature is good now
    • After finishing the IYC experiment, temperature decreased
• 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
  • No reports
• Washimi

  • SEM page update https://gwdet.icrr.u-tokyo.ac.jp/~controls/slowmonitor/index.html

• Kume
  • ICA analysis related with PEM
• Fujikawa
  • Master thesis

Place for memo