== Weekly PEM meeting ==
 * 2019/11/18(Tue) 16:00-(JST)
 * Regular meeting meeting (Japanese) 
 * Web meeting with Zoom2 ([[https://zoom.us/j/6676627462|Zoom2]])


Kamioka : tomaru, washimi, ttanaka, yokozawa(home),kozakai(home), 
ohkawa, fujikawa, tnt




=== Agenda ===

==== General issue ====

  * Meeting time
   * 17:00-18:00  ->  16:00-18:00
  * Interferometer status
   * MN OpLev dump filter (Yamada) -> limited to low freqency
   * Alignment Dither System (Nakano) -> FPMI lock becomes stable


 * PTEP paper (-> After the begining of O3)
  * [kagra 03133] KAGRA Overview papers
    * Overview of KAGRA : (3) Det, CAL, PEM, data quality
  * Chrome Book project PEM?

 * Conference
   * F2F meeting (4th and 5th Dec., 2019 @ RESCEU) [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/LCGT/Meeting/f2f/2019Dec]]
     * Washimi (PEM status)
     * Miyo (doctoral thesis)
     * TTanaka (master thesis)
   * JPS (2010/3/16-19 @ Nagoya)
     * registration : -12/3 14:00

 * Morning PEM work in mine
  * Locate sensors (morning) -> data taking & analysis (afternoon, night)
  * Tentative : 18V DC noise(24Hz), Cryochamber vibration, Air compressors, FFU, Cooler, Noise search
    -> purchasing some new sensors

 * Database for the KAGRA characteristic lines
  * [[https://www.icrr.u-tokyo.ac.jp/~yokozawa/KAGRA_line_database/index.html|url]]
  * NoEmi is notready

 * Visitors from LV
   * Anamaria from Livingston : 18 - 29 Nov.
   * Federico, Irene, Camilla (input optics) + Francesca from Virgo : 11/26-12/7 (2 weeks@KAGRA, 1 weeks@NAOJ)
    * O3 Octr. break summary : in the next weekly comisshoning meeting
      *	リクエスト：ノイズハンティングストラテジー
    * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/191126/Agenda|LVK PEM meeting (11/26)]] 16:00-18:00
   * Fujikawa, TNTanaka 11/24-12/3


==== Each progress ====

  * Yokozawa
	ISS (oup of loop) : 46Hz -> DARMとは微妙に周波数が違い、コヒーレンスは見えない
				水冷クーラー(IYC)？
				機械系の共振なら、ゴム or M2052合金

  * Washimi
   * Slow monitor page [[https://www.icrr.u-tokyo.ac.jp/~washimi/KAGRA/PEM/SEM/]]
   * Coherence study between FPMI & PEMs (on-going)
   * Polish-up of Acuostic reverberation time (on-going) 

  * Kozakai
   * Trigger analysis with silent run
	いろいろupdate
	O3前にDetChar ER run

  * TTanaka(ICRR)
   * Acoustic injection with FPMI (+ Washimi, Yamada, TNTanaka)

  * --(Mori)--

  * Fujikawa
   * Lock loss study [[attachment:PEMmtg_191119lock.pdf]]
   * fujimopy 
  imc signal : 2 peak?

  * TTanaka(Niigata)
   * magneticfield from IYC air cooler