Minute of PEM meeting

Date: 2019/8/28 17:00-18:00(JST)
Attend：Yokozawa, TTanaka, Kaihotsu, Mori, kozakai, Washimi, Fujikawa, TTanaka(Niigata), Miyoki, Ohkawa, Kokeyama
Agenda
- Yokozawa
  - Coherent analysis for the FPMI
    - Using Bruco, I evaluated the origin of the noise source during the FPmi
    - Results are written in klog everyday
- Washimi　
  - Magnetic field simulation
  - Lightning issue
    - Discussion about the lightning monitor at 12th Sep.
    - monitoring the MAX/MIN magnetometer time series monitoring
    - There are lightning candidate around the evening
    - Full sampling rate time series monitoring
    - correlation between BS oplev was observed only 5th Aug.
    - PEM injection T~e-9 but 5thAug is e-6 level
    - Need very large coil
    - If we use the frame, we can make larger magnetic field
  - PSL 44Hz noise hunting
    - PSL44Hz
    - Can remove this effect. Move the 24V power supply to ouutside of the PSL room. Portable1 acc moved to white laser lack.
  - IMMT1 vibration
    - ISS cover check
    - Check the portable acc, but not detected the serious noise (structure below 40Hz), there seems no large noise structure candidate..
- Kozakai
  - Glitch issue
    - Omicron was unstable now
    - Development the spectrogram tool
  - Pick up the requirement to PEM for the JPS meeting
- TTanaka
  - Preparing for the PEM injection
    - PEM injection from analysis building without KAGRA DAQ
    - Easy set, easy injection
    - Select the PC there is useful injection software, and via USB or something, we can inject remotely if we set the injector to the mine
    - Discussion about the future plan this weekend
- Miyo
  - Seismic motion issue if there is topic
- Okutomi
  - Shaker injection
- Kaihotsu
  - Vacuum pump vibration and comparison between TEAC706 and chromebook
    - Using the TEAC706 and KAGRA DA, he checked the vibration of the vacuum pump very carefully
    - Actually, there is large 312.5Hz noise. there is 315Hz in the PR2 vacuum pump instead of the 312.5Hz.
    - If you read the controller, you can check the rotation rate
- Fujikawa
  - Fujimopy
    - Fujikawa+Mori
    - Extract the line peak
    - Implementing the various noises
  - Lockloss with earthquake
    - Earthquake vs lockloss
    - check by the MCF seismometer
    - He found the some earthquake make lockloss
    - Investigated the lockloss vs amplitude and source of the earthquake
- Yuzurihara
  - Yuzu summary page comments
- etc

KAGRA/Subgroups/PEM/Meeting/190827/Minute (last edited 2019-08-28 03:47:20 by TakaakiYokozawa)