Diff for "KAGRA/Subgroups/PEM/Meeting/200128/Agenda"

Differences between revisions 3 and 12 (spanning 9 versions)

Weekly PEM meeting

2020/01/28(Tue) 16:00-(JST)
Regular meeting meeting (Japanese)
Web meeting with Zoom2 (Zoom2)

Agenda

General issue

Interferometer status
- Finally, we can lock the PRFPMI
  - Transmittance laser power became 100 times higher than FPMI
  - Lock duration is about 30min at maximum
- OMC commissioning is also ongoing
- ~100Hz noise and line noise of the higher frequency -> PEM
New PEMs
- We bought the ACO power supply, microphone and accelerometers(end of Feb.)
- Basically the portable PEMs
PEM plan
- PEM injection
  - Shaker injection (TTanaka, Yokozawa)
  - Acoustic injection (TTanaka, Yokozawa)
    - PSL, REFL and AS table injection (Defence of TT Thesis -> tomorrow)
  - magnetic field injection (Niigata TTanaka, Fujikawa, Yokozawa)
    - Effect of the air cooler magnetic field
    - AS, REFL table injection
    - He is writing the thesis
- Hammering test
  - 20/01/21 Minute
  - Hammering test @ Y-end : around 2/15 (JGW-G2011419)
- Long term PEM evaluation
- Turning off the instruments
- Many microphone in the PSL room
Conference
- 地下宇宙若手研究会@茂住 (2020/2/22-24)
- JPS (2020/3/16-19 @ Nagoya)
  - Yokozawa, TTanaka
- F2F (2020/4/17-20 @ Kashiwa) wiki
- GWADW (2020/5/11-16 @ Hokkaido)
- KIW7 (2020/5/29-31 @ NCU, Taiwan)

Each progress

Yokozawa
- Planning toward the O3 run
- IX. IY microphone
- Instrument switch off
Washimi
- Noise around 100Hz @ ER3 klog12629
- Portable PEM with DataLogger GutHub201
- PEM chassis JGW-T2011425
Kozakai
- Coupling with calibration line @ ER3 slides
TTanaka(ICRR)
- shaker injection with FPMI
- Master thesis JGW-G1910387
Fujikawa
- Lock loss study
TTanaka(Niigata)
- Magnetic field from air cooler and compressor
- Magnetic field injection to AS and REFL table
etc

KAGRA/Subgroups/PEM/Meeting/200128/Agenda (last edited 2020-01-28 13:59:39 by chihiro.kozakai)

-  ⇤ ← Revision 3 as of 2020-01-23 06:30:24 → 
  Size: 3437
  Editor: TakaakiYokozawa
  Comment:
+   ← Revision 12 as of 2020-01-28 13:59:39 → ⇥
  Size: 2676
  Editor: chihiro.kozakai
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 12:
-  * December 17-24 24h engineering run
   * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/EngineeringRun/ER191217_24/ | wiki]]
   * We also held the post ER. We turned off the FFUs and vacuum pumps
  * Lock acquisition to PRFPMI
  * There is still some peaks in the lower frequency
   * Type-A resonant frequency [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11116|JGWDoc11116]]
  * Peaks appeared at higher frequency
   * PEM injection to REFL table
  * After that, we will move to noise hunting
+  * Finally, we can lock the PRFPMI
   * Transmittance laser power became 100 times higher than FPMI
   * Lock duration is about 30min at maximum
  * OMC commissioning is also ongoing
-Line 23:
+Line 18:
- * PEM plan January
  * Identification of the ~100Hz noise source
   * (Maybe, ) the dominant noise for lower frequency may come from suspension
  * After the success of the PRFPMI (or chance to operate the FPMI), we would like to do following things
   * Understanding the coupling function detected at the refl table
    * At the some point, we detected the larger coupling function
    * Periscope or some optics?
  * We would like to inject sound or vibration to AS, POP and TMS table
+ * New PEMs
  * We bought the ACO power supply, microphone and accelerometers(end of Feb.)
  * Basically the portable PEMs

 * PEM plan 
  * PEM injection
    * Shaker injection (TTanaka, Yokozawa)
    * Acoustic injection (TTanaka, Yokozawa)
      * PSL, REFL and AS table injection (Defence of TT Thesis -> tomorrow)
   * magnetic field injection (Niigata TTanaka, Fujikawa, Yokozawa)
     * Effect of the air cooler magnetic field
     * AS, REFL table injection 
     * He is writing the thesis
  * Hammering test
     * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/200121/Minute|20/01/21 Minute]]
     * Hammering test @ Y-end : around 2/15 ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11419|JGW-G2011419]])
-Line 32:
+Line 35:
- * PEM festival
  * 01/14(Tue) 9:00-15:00 
   * Evaluate the scattered light for payload (with CRY team) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12293]]
  * 01/15(Wed) (Maybe expanded)
   * Turned off almost all FFUs and vacuum pumps
+  * Turning off the instruments
  * Many microphone in the PSL room
-Line 40:
+Line 39:
-  * [[https://sites.google.com/view/ugapw2020/home|地下宇宙若手研究会]]@茂住 (2/22-24)
+  * [[https://sites.google.com/view/ugapw2020/home|地下宇宙若手研究会]]@茂住 (2020/2/22-24)
-Line 42:
+Line 41:
-   * Yokozawa, TTanaka
  * KIW7

 * PEM injection
  * Shaker injection1 (TTanaka, Yokozawa)
  * acoustic injection (TTanaka, Yokozawa)
   * PSL, REFL and AS table injection
   * Analysis is ongoing
  * magnetic field injection (Niigata Tanaka, Fujikawa, Yokozawa)
   * Effect of the air cooler magnetic field
   * AS, REFL table injection 
   * He is writing the thesis

 * Newtonian noise measurement
  * Thank you for Virgo PEM member!
  * Francesca mainly measured the newtonian noise
  * We will discuss in 21st. Jan.(Virgo KAGRA PEM meeting)

 * PEM measurement
  * Someday : Effect of the sound to DARM displacement 
  * Someday : Environmental check around BS (including the POP)
  * Someday : Evaluation of the table cover
  * Someday : SR2 and SR3 optical lever (Reflection light from SRM?)
+    * Yokozawa, TTanaka
  * F2F (2020/4/17-20 @ Kashiwa) [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/LCGT/Meeting/f2f/2020Apr|wiki]]
  * GWADW (2020/5/11-16 @ Hokkaido)
  * KIW7 (2020/5/29-31 @ NCU, Taiwan)
-Line 70:
+Line 51:
+  * IX. IY microphone
  * Instrument switch off
-Line 72:
+Line 55:
-  * Preparation for the hammering test @ Y-end [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12497|klog]]
  * Sound reverberation study (KAGRA & Virgo)
+  * Noise around 100Hz @ ER3 [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12629|klog12629]]
  * Portable PEM with DataLogger [[https://github.com/gw-pem/kagra-pem/issues/201|GutHub201]]
  * PEM chassis [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11425|JGW-T2011425]]
-Line 76:
+Line 60:
-  * Offline detchar report for the part of the PEM
+  * Coupling with calibration line @ ER3 [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11426|slides]]
-Line 79:
+Line 63:
-  * shaker injection with FPMI[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11117|speaker@12/8]],[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11128|shaker@12/15]]
  * Master thesis[[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10387|thesis]]
+  * shaker injection with FPMI
  * Master thesis [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10387|JGW-G1910387]]
-Line 82:
+Line 67:
-  * Lock loss study2 
  * fujimopy
+  * Lock loss study
-Line 89:
+Line 73: