= Minute of PEM meeting =
----

 * Date: 2020/09/25 17:00-18:00(JST)
 * Attendance: Yokozawa, Washimi, Ohkawa, Fujikawa, Oshino, Yokoyama, Kume
 * Regular meeting


=== Minutes ===

 * KAGRA schedule [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0120/G2012041/001/ChamberOpen-Schedule200925-2.pdf|JGW12041]]
  * - 7th Oct. RSE lock trial
  * 5th Oct. - 12th(19th) Oct. Start the cleaning
  * 8th Oct. - 21st Oct. Warming up cryogenic ducts(IX, IY, EY)
  * 14th Oct. blackout (13th, 15th working date for blackout)
  * 19th Oct. - 23rd Oct. Clean work by company
  * 22nd Oct. - 25th Oct. break vacuum
  * 26th Oct. - Open chambers

 * Call for discussion
  * Some measurement if we can lock the DRFPMI
   * Acoustic injection with portable PEMs
   * Noise investigation

  * PEM measurement during blackout
   * Prepare the DAQ during blackout
   * Seismometer + magnetometer + Infrasound microphone + GND
  
  * PEM DAQ racks
   * Use only IX and IY racks
   * Move the position of IX and IY racks

  * New PEMs toward O4
   * Many microphone
    * Not only tables but also booth
   * Position of magnetometer
   * Position of seismometer
   * Additional PEMs to PSL room
    * 120Hz noise
    * glitch study

  * Lock loss study
   * control loop of the ETMX MNR?

  * If you have new idea or discussion item, please write here

 * Fujikawa will visit Kamioka from 4th Oct. to 17th Oct.

 * ICA analysis
  * PR booth injection analysis
  * Now frequency domain -> move to time domain

 * Next PEM meeting 17:00- 2nd Oct.