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== Weekly PEM meeting == * 2019/7/09(Tue) 17:00-(JST) * Regular meeting meeting * Web meeting with Zoom2 ([[https://zoom.us/j/6676627462|Zoom2]]) |
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参加者:washim, kozakai, oshino, ttanaka, fujikawa kaihotu,ohkawa, yamamoto, mori | |
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* General issue | * General issue |
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* KAGRA interferometer status * PRC loss was large, birefringence effect? * FPMI or SRFPMI or DRFPMI * Open the CS area and remove the PRM and SRM? * Before that, we want to investigate the scattering effect at CS area |
* Wiki page Renewal * PEMのwiki pageを整理した。ご意見ご感想大歓迎。 |
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* Chrome Book project * Portable PEM researcher * Spectral analyzer, sound recording, ... * USB accelerometer ([[attachment:20190628_summary.pdf|Center area]]), microphone, ... * Data sharing [[https://drive.google.com/open?id=1zIturCCaSe7mmP0s15TcRzHsvNvomP5k|GoogleDrive]] |
* Chrome Book project(->Washimi report) |
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* Understanding the effect of the instruments and so on * Power supply * duct vibration * PEM DAQ sampling rate * Due to the limited DAQ power, almost all PEMs are taken at 2kHz sampling * Only PSL and CS microphone are taken with 16kHz sampling for the noise hunting |
* PCal Rx PD noise budget : [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10397|result]] * 真空ポンプON/OFFでPDのスペクトルを比較したが、大勢に変化はなかった。鋭いピークがいくつか消えた。 * RxPDと加速度計とのcoherenceは何とも言えないが、ドライポンプ・ターボポンプとの間には特徴が見える。 |
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* Shaker injection1 (Yikang, Yokozawa) * Shaker injection2 (Okutomi, Fabian) * acoustic injection (TTanaka) * magnetic field injection (Yikang, Yokozawa) * RF injection (TTanaka, Washimi) * 1st engineering run * 1st engineering run : Jun. 8th 12:00-18:00(JST) : Xarm cavity |
* acoustic injection (-> TTanaka report) |
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* Next engineering run : 13th Jul. * Interferometer configuration ? |
* Next engineering run : 13th Jul. ('''今週の土曜日''') * Interferometer configuration MICH |
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* We will have a monthly English meeting(Mainly share the information with Virgo people) * The third Tuesday of every month 17:00-(JST) 10:00-(CEST) * 2nd meeting will be held at 16th Jul.(Tue) 17:00-18:00 [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/190716/Agenda|URL]] |
* 2nd meeting will be held at 16th Jul.(Tue) 17:00-18:00 [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Meeting/190716/Agenda|URL]] ('''来週の火曜日''') |
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* each member progress | |
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* We started the investigation around the EX0 rack today. * With Pcal noise investigation |
* Coherent analysis with PEMs * Xend PCal Rx module noise hunting! |
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* Others and plan toward the JPS meeting * Google chrome project * Accelerometer and microphone * They are very useful, especially potable feature is great. * Several spectral with short spectrogram was shown |
* Plan for cryochamber characterization * Sound reverberation analysis : no update * Kaminari monitoring : learning now... * Others and plan toward the JPS meeting : no update * Google chrome [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/PEM/Portable|wiki page]], [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10385|USB magnetometer]], Data sharing [[https://drive.google.com/open?id=1zIturCCaSe7mmP0s15TcRzHsvNvomP5k|GoogleDrive]] |
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* Debugging now * Current a few days failed? |
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* One year trend is now opened consistent with Sekiguchi-san. Time variance check. * 0.2Hz source dependence (0.15Hz??) * 1.2Hz came from the ikenoyama river, observed during bKAGRA phase1 * Future issue is written in his github, welcome the comments * Future discussion towards the English meeting |
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* Web page ready, pick up information by the k1script ready, remaining issue is making the epics channel and caput | |
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* Preparing for the PEM injection * Speaker will be arrived tomorrow |
* Preparing for the PEM injection[[https://drive.google.com/open?id=1FU3kaMimwzHkcS_L0urzAi4EFV7loPwSGgoPO4H8mVo|slide]] |
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* Check with the coherent and non-coherent component | |
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* JGW Doc | |
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* Kaihotsu * Report about the KIW6 * Questions * They will join to KAGRA PEM once of the every week (Friday?) |
* Kaihotsu, Mori * Weekly PEM measurements |
Weekly PEM meeting
- 2019/7/09(Tue) 17:00-(JST)
- Regular meeting meeting
Web meeting with Zoom2 (Zoom2)
参加者:washim, kozakai, oshino, ttanaka, fujikawa kaihotu,ohkawa, yamamoto, mori
=== Agenda ===
- General issue
- Wiki page Renewal
- PEMのwiki pageを整理した。ご意見ご感想大歓迎。
Chrome Book project(->Washimi report)
- Weekly PEM measurement
- Friday is temporal weekly PEM measurement
PCal Rx PD noise budget : result
- 真空ポンプON/OFFでPDのスペクトルを比較したが、大勢に変化はなかった。鋭いピークがいくつか消えた。
- RxPDと加速度計とのcoherenceは何とも言えないが、ドライポンプ・ターボポンプとの間には特徴が見える。
- PEM injection
acoustic injection (-> TTanaka report)
- Preparing toward the next engineering run
Next engineering run : 13th Jul. (今週の土曜日)
- Interferometer configuration MICH
- English meeting
2nd meeting will be held at 16th Jul.(Tue) 17:00-18:00 URL (来週の火曜日)
- Seismon issue
- We already installed to KAGRA system
- Need the tuning for the KAGRA
- Large earthquake happened this month, we "should" be a safe mode before coming large earthquake (PEM issue???)
- Task list toward the O3
- Please send e-mail to me if you have comments.
- Yokozawa
- Power supply issue
- Coherent analysis with PEMs
- Xend PCal Rx module noise hunting!
- Washimi
- Plan for cryochamber characterization
- Sound reverberation analysis : no update
- Kaminari monitoring : learning now...
- Others and plan toward the JPS meeting : no update
Google chrome wiki page, USB magnetometer, Data sharing GoogleDrive
- Kozakai
- Trigger event identification
- Yuzu summary page comments
- Others and plan toward the JPS meeting
- Miyo
- Effect the protect shied to the seismometer
Long term study of the KAGRA ground motion Link
- Oshino
- Weather station issue
- TTanaka
Preparing for the PEM injectionslide
- Microphone calibration
- Thesis agenda and plan toward the JPS meeting
- Okutomi
- Shaker injection
- Kaihotsu, Mori
- Weekly PEM measurements
- Yuzurihara
- Yuzu summary page comments
- etc
- Wiki page Renewal
- github progress