== Weekly PEM meeting == * 2019/11/12(Tue) 17:00-(JST) * Regular meeting meeting * Web meeting with Zoom2 ([[https://zoom.us/j/6676627462|Zoom2]]) === Agenda ===   * General issue * Meeting time * 17:00-18:00 -> 16:00-18:00 * Increase the discussion item * Conflict with CRY meeting(?) * Interferometer status * We are fixing the ALS(Arm Length Stabilization system) problem. * Long silent run at 2nd Nobember ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=11312|klog11312]]) * See the detail in [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/DET/RUN/MORNINGRUN2019|url]] * Silent run -> Some excitation(including calibration line) -> PEM injection -> Hardware injection * PTEP paper * [kagra 03133] * KAGRA Overview papers * Overview of KAGRA : (3) Detchar, calibration, physical environment, data quality * Next F2F meeting * RESCEU * 4th and 5th Dec., 2019 * 1 slot Washimi-san will have a talk * If you plan to write master/doctor thesis, please let me know * TTanaka * Chrome Book project (Portable PEM researcher) * http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Portable * We prepared two PEM Chromebook * Start writing paper (PTEP?) * PEM injection * Shaker injection1 (TTanaka, Yokozawa) * acoustic injection (TTanaka, Yokozawa) * magnetic field injection (Niigata Tanaka, Fujikawa, Yokozawa) * Weekly PEM measurement * Friday (+every morning) is weekly PEM measurement * Understanding the effect of the instruments, search the origin of noise, and so on * Tentative : 18V DC noise(24Hz), Cryochamber vibration, Air compressors, FFU, Cooler, Noise search * Database for the KAGRA characteristic lines * [[https://www.icrr.u-tokyo.ac.jp/~yokozawa/KAGRA_line_database/index.html|url]] * Fixed bugs * 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) * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/191126/Agenda|LVK PEM meeting (11/26)]] * Fujikawa, TNTanaka 11/24-12/3 * Each progress * Yokozawa * Current serious noises * MICH control noise * ACC ground loop problem * New accelerometers for noise search * Lock state vs EXC magnetometer * Daily summary page * Washimi * IXC Air compressor (+TNTanaka) [[attachment:washimi_CRYmeeting_20191111.pdf]] [[attachment:TNT.pdf]] * KamioKaminari update [[https://www.icrr.u-tokyo.ac.jp/~washimi/KAGRA/PEM/KamioKaminari/]] * PEM map update [[https://www.icrr.u-tokyo.ac.jp/~washimi/KAGRA/PEM/PEMmap/]] * Slow monitor page [[https://www.icrr.u-tokyo.ac.jp/~washimi/KAGRA/PEM/SEM/]] * Kozakai * Trigger analysis with silent run * TTanaka(ICRR) * Acoustic injection with FPMI (+ Washimi, Yamada, TNTanaka)[[attachment:AcoInj.pdf|pdf]] * Mori * Vacuum pump vibration [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10949|JGW-G1910949]] * Fujikawa, Mori * fujimopy * Line amplitude web page * Fujikawa * Lock loss study [[attachment:PEMmtg_191112lock-2.pdf]] * TTanaka(Niigata) * Preparation of the coil * IXC compressor study * Yamamoto, Yuzu, Andrew * Pastavi * etc