== Weekly PEM meeting ==
 * 2023/08/18(Fri) 17:00-
 * Regular meeting
 * Zoom2 : https://zoom.us/j/6676627462

==== General announcement ====

 * New KSC chair and vice-chair
  * Masaki Ando
  * Ray-Kuang Lee and Sachiko Kuroyanagi

 * Open the registration LVK meeting@Toyama
  * Poster abstract submission
    * 27th August
  * 2023/09/11-15
  * Including the F2F meeting
  * [[https://www.resceu.s.u-tokyo.ac.jp/symposium/LVK2023toyama/index.php|url]]
  * Welcome the visitor 
   * Deep Clean member
   * Kamiel and Anoop

 * KAGRA visiting plan
  * If you want to visit Kamioka, please contact to Yokozawa

==== Meeting and Conference issue ====

  * LVK meeting at Toyama
   * 11-14 September 2023
   * KAGRA F2F meeting on Sep. 15

  * JPS meeting (Tohoku U)
   * 16-19 September 2023
   * Presentation about PEM
    * Yokozawa (Status)
    * Washimi (Noise hunting)
    * Hoshino (Seismic forecast)

  * Other meetings [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/DAWG/conferences|url]]

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

==== Business travel (except for conferences) ====

 * To Kamioka
  * Hoshino(8/8 - 10)
 * From Kamioka
  * No
  
==== General issue ====

  * Cooling down
   * EX : Achieved 20 K in IM
    * Monitored the height by MNV oplev and TCam
     * The SUM value of MNV oplev decreased with temperature, that turned out the clipping by the viewport of radiation shield [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=26232|klog26232]]
     * Now recovered, but SUM decreasing continued
    * Serious frosting and finesse down detected
     * Turned on the heater at IM, after increasing 30 K, the finesse recovered
     * Still some frosting at AR side from picture [[ https://klog.icrr.u-tokyo.ac.jp/osl/?r=26336|klog26336]] and oplev sum[[ https://klog.icrr.u-tokyo.ac.jp/osl/?r=26308|klog26308]]
     * During PRFPMI locked, the temperature of IM gradually increased[[https://klog.icrr.u-tokyo.ac.jp/osl/?r=26358|klog26358]].

   * IX, IY, EY ongoing : about 110 K in IM (2023/08/18)
    * Temperature change [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/trendMon/finesse.html|url]]

  * Vacuum level trouble
   * EX : performance of one cryocooler became worse
    * No serious damage to the test mass
    * Plan to restart it around LVK meeting(September)
   * Yarm
    * Y-21 vacuum trouble
     * Now, by turning on the TMP, keep good vacuum level

  * New high power laser replacement
   * Temperature drift would be smaller by tuning the temperature control
   * But if we increased the output laser power from PSL room, IMC cannot be locked.
   * Now operating the current old laser

  * Alignment inside the PSL room
   * PMC alignment done(No so serious change)
   * GR alignment done (Increased the beam power)

  * Interferometer operation
   * After checking the POP and REFL table again, and found one BS flipped.
    * Then, PRFPMI RF became more stable (One night lock)

  * New IP control
   * Ongoing

  * PEM tasks
   * Outside magnetometer
    * DAQ system trouble? Washimi-san sent to company
   * Acoustic noise at OMC
    * Re-cabling for OMC speaker
   * AC power check at Yend
    * SUM value of the MNV oplev decreased
    * No problem in AC power supplying

 * 出張PEM injection ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=14016|planning form]])
  * 

==== Jurnal paper issue ====
[[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Reports/JurnalPaperIssue|Details are here!]]

  * Micro seismic analysis (Hoshino)
   * Submited to CQG
   * [[https://ja.overleaf.com/project/627270d6b67cab411d1c7d32|Overleaf]]
   * [[http://arxiv.org/abs/2306.12437]]

  * ICRC Proceedings

  * Acoustic reverberation time paper (Washimi+, Sato?) 
    * Suspend
    * Re-measurement before O4?

  * TCam paper 
    * Writing ongoing

==== Preparation for O4b ====

 * Check the seismic motion around mozumi area
  * Daytime ground motion 
  * It may appeared in DARM sensitivity (SR3?)

 * Schumann resonance measurement
  * Ongoing

 * Investigation of the PEM injection
  * Magnetic injection 
   * After O4a?

 * Voltmeter preparation
  * AC power monitor installation
  * DC power monitor installation

 * 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 [[https://dcc.ligo.org/G2201168|slide]]
  * Data quality evaluation

 * Hoshino
  * Seismic motion analysis

 *Sato
  * Sound source analysid

 * Miyamoto
  * Weather analysis

 * Takatani
  * Applying the deepclean
  * Calculation of Schumann resonance

 * Kume
  * PR3 line injection [[https://klog.icrr.u-tokyo.ac.jp/osl/?r=25670|klog25670]]
  * Noise subtraction

 * Nishizawa
  * Water newtonian noise
  * Magnetic field analysis

 * Washimi 
  * Magnetometer DAQ status

 * Yokozawa 
  * AC power monitor

==== Place for memo ====
 * [[https://www.gw-openscience.org/O3/o3aspeclines/|Line noise list in O3a public data]]
 * [[https://pubplan.ligo.org/CW/KAGRA_VectorDM.html|Summary page for KAGRA O3 vector dark matter]]