== Weekly PEM meeting == * 2024/11/15(Fri) 17:00- * Regular meeting * Zoom2 : https://zoom.us/j/6676627462 ==== General announcement ==== * Thank you very much for many responses for the Commissioning support! * Virgo ENV member have some plan to visit KAGRA about 1 month * Jan., Feb. or Mar. one month * Plan * Noise hunting (PEM injection) toward the 10 Mpc would be first priority * Power supply operation * Magnetic injection * Additional NN measurement * Other * O4a noise budget paper * If you have a plan to write the paper using O4a data and PEM, please let me know. * Start the investigation for the new subsystem, noise subtraction, under the SEO. * First meeting in Japanese member, next week ==== Meeting and Conference issue ==== * 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 ==== * To Kamioka * Sato (11/11-16) * Abe (11/18-29) * Ueno (11/24-29) * OMU 4 people (11/24-30) * Murofushi (11/24-30) * From Kamioka * Washimi (YMAP,ET) ==== General issue ==== * Commissioning * PRFPMI * Some frequency improved ([[https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20241010/#gallery-1|Sensitivity]]) * OMC commissioning * Summary [[https://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0161/G2416171/002/OMCwork241115_v2_compressed.pdf|JGWDoc16171]] * OMC DCPD burned * Now fixed * 5 W trial * Succeeded to lock the PRFPMI DC readout with 5 W * [[https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20241111/|Sensitivity]] * Schedule * Cooling down (ongoing) * OMC DCPD replacement (11/11-15) * High power challenge 5 W (11/18-22) * Noise budget (11/25 - ) * Cooling radiation shield (Middle of Dec.?) * 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!]] ==== Preparation for O4b ==== * Coil preparation for magnetic injection * Voltmeter preparation * AC power monitor installation * DC power monitor installation ==== Progress report ==== * Sato * Acoustic injection analysis * Ohashi * Microseismic noise with machine learning * Kume, Ueno * Noise subtraction * Nishizawa * Water newtonian noise * Magnetic field analysis * Washimi * * Yokozawa * Noise hunting ==== 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]]