• KAGRA
• Subgroups
• PEM
• Meeting
• 230512
• Agenda

Weekly PEM meeting

• 2023/05/12(Fri) 17:00-
• Regular meeting

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

General announcement

• O4a run will start from 24th May
  • 4 weeks run it will finish 21st Junne
  • Mostly onsite and Mitaka member will have a shift for observation
    • Not disagree that offsite member come KAGRA during run
  • CAL/DET week from 17th May
    • We will stop the innterferometer update
• SEO budget to PEM is limiting
• KAGRA visiting plan
  • Now, the budget of KAGRA is limiting, but if you want to visit Kamioka, please contact to Yokozawa

Meeting and Conference issue

• XIII Einstein Telescope Symposium https://indico.ego-gw.it/event/562/abstracts/

  • May 8–12, in Cagliari Italy
  • Washimi (online) : Schumann resonance amprification
  • Somiya (online) : Water NN
• GWADW 2023
  • 21 - 27 May, Elba, Italy
  • One day could be the day for "KAGRA commissioning support" and "experiences/results in KAGRA" presentation
  • The 3rd generation can be a large topics because ET is now proceeding.
• 10th KIW
  • 29,30th May
  • Washimi (SOC)
  • Hoshino

• ICRC 2023 url

  • Nagoya
  • Deadline 2/20
  • Yokozawa will present about KAGRA PEM (oral)
  • Washimi will present about Schumann resonance and SGWB
• JPS meeting (Tohoku U)
  • Limiting hotel

• Other meetings url

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

Business travel

• Depending on the situation of COVID-19
• To Kamioka
  • No
• From Kamioka
  • No

General issue

• Status

  • Sensitivity 1.2 -1.4 Mpc latest

  • From the results of CAL/DET day at 4/26, calibration is consistent with previous measurement
• Effect of earthquake at Noto peninsula
  • 5th May : Magnitude 6.7 at Noto peninsula
    • Several earthquakes are still happened
  • Interferometer is already recovered
    • Re-alignment at PSL room
• Commissioning work
  • Alignment sensing and controls
    • We need the PR3 global control to keep the stable opleration
      • Trial is ongoing
      • If trial is not succeeded until the O4a, we will sometimes perform manual alignment
    • OMC alignment control problem
      • Fixing is ongoing
      • If trial is not succeeded until the O4a, we will sometimes perform manual trouble shooting
  • Tapping test and shaker injection
    • We performed the tapping test(Vibration injection test by hand) at 4/25 and 4/29

    • Result(JGWDoc14941)

    • OMC chamber is most sensitive part, we performed the shaker injection test
      • Analysis is ongoing
  • Acoustic injection test

    • REFL table klog25073

    • POP table klog25190

  • Increasing the laser power
    • Toward the stable operation is higher priority, so if possible we will try to increase the laser power
  • Glitch investigation
    • ETMY oplev glitch
      • Solved by install the temperature control system
    • ITMY suspension glitch
      • Try to install the IR/GR filter in front of oplev QPD
    • IPC glitch

      • It sometimes happened that the time series sometimes jump during observation example(klog24930)

      • Trial of slim down the real time model
      • Trial the glitch reason by Sawada-san
    • 37 Hz glitch

      • It detected in OMC signal klog25106

      • 37 Hz and its harmonics frequency excited
      • Seeing in hveto analysis(?)
      • The reason is not understand yet
  • Lock loss investigation
    • Ongoing
  • Silent run
    • Night silent run restarted.

• 出張PEM injection (planning form)

Jurnal paper issue

Details are here!

• Micro seismic analysis (Hoshino)
  • Submit to CPC soon

  • Overleaf

• Acoustic reverberation time paper (Washimi+)
  • Suspend
  • Re-measurement before O4?
• Tonga GIF paper
  • Referee comments

Preparation for O4

• Environment will be fixed today
  • Turned off the cooler and heater at the same time
  • High resolution heater
• Finalize the PEM installation
  • Accelerometer to C chamber and TMS table (Maybe postpone after O4a, lower priority)
  • Microphone to C chamber (Maybe postpone after O4a, lower priority)
• Investigation of the PEM injection
  • Tapping test is higher priority
  • Acoustic injection preparation
    • Output sound smaller compared from O3GK's
  • Magnetic injection
    • After O4a?
• Voltmeter preparation
  • We made the PEM channel
    • K1:PEM-VOLT_{PSL,IMCREFL,REFL,ISS,AS}_TABLE_{GND,FLOAT,DIFF}
    • K1:PEM-VOLT_OMC_CHAMBER_{GND,FLOAT,DIFF}
  • AC power monitoring
    • Bought transreducer
    • Prepared
  • DC power monitoring
    • Arrived at Kamioka
• After O4
  • RF monitor with mokugo
  • Tiltmeter
  • RI detector
  • Newtonian noise
• Discussion with DET members
  • Daily summary page PEM

Progress report

• Yuzurihara
  • Pastavi

  • Data Quality Report slide

  • Data quality evaluation
• Hoshino
  • Seismic motion analysis
• Sato
  • Sound source analysid
• Miyamoto
  • Weather analysis
• Takatani
  • Calculation of Schumann resonance
• Kume
  • Noise subtraction
• Nishizawa
  • Water newtonian noise
  • Magnetic field analysis
• Washimi
  • Daytime ground motion
  • Shaker injection OMC
  • Acoustic injection POP, REFL
• Yokozawa
  • Morning silent run

Place for memo

• Line noise list in O3a public data

• Summary page for KAGRA O3 vector dark matter