Weekly PEM meeting
- 2020/09/25(Fri) 17:00-
- Regular meeting
Zoom2 : https://zoom.us/j/6676627462
Agenda
Conference issue
- KIW7
- The 7th KAGRA International Workshop (National Central U., Taiwan), Dec. 18-20, 2020 (F2F meeting on Dec. 17-18)
- Yokozawa is supported by C2C program
- If you have interested in, please contact to Yokozawa
- (Next JPS meeting is also online-meeting)
General issue
- Interferometer status
- RSE lock trial
- Continued to 30th Sep.
- New suspension damping (modal damping)
- ALS DARM and Find IR resonance
- PRCL, SRCL control
- Power outage 14th Oct.
- Some measurement?
- RSE lock trial
- Preparation for O4 work
- Toward opening the chamber
- FFU on with temperature control
Help the VIS cleaning Schedule
- Cleaning the PEMs
- Toward opening the chamber
- Working style (COVID-19 related)
- Some collaborator came to Kamioka. Please contact to Yokozawa if you plan to go to Kamioka.
- KAKENHI proposal limit
- NAOJ : Oct. 8
- ICRR : Mostly end of Oct.(4th week deadline)
- JSPS : Nov. 5 16:30 JST (final limit)
Jurnal paper issue
PTEP (2) : noise budget(K.Yamamoto) Check list, slack <<Analysis is ongoing>>
- Environmental part
- Acoustic noise : Refer our PEM injection paper.
We can discuss whether we use the result of pre-O3 study for the noise budget paper.
- Seismic noise : summarise the actual seismic nois during O3GK? (who?)
OMC leg vibration : 12th - 16th Sep. ?
AC power lines : Coherence analysis is done (http://klog.icrr.u-tokyo.ac.jp/osl/?r=14848, Washimi)
- Magnetic noise : skipped in this paper?
Newtonian : seismic newtonian -> from PTEP1 (or Francisca?) / water fluid newtonian -> skipped / air density -> skipped
- Acoustic noise : Refer our PEM injection paper.
- Line noise investigation
- violin mode : Details of the RMS value will be not discuss in PTEP2.
- Environmental part
PTEP (3) : CAL, DET, PEM, GIF (Yokozawa) <<Submitted>>
Acoustic injection paper (Washimi) <<WRITING>>
ICA for E-run/O3GK (Kume, Yokoyama) <<Analysis ON GOING>>
Portable PEMs (Yokozawa+) <<Start investigation>>
Preparation for O4
- PEM tasks for O4 will be discussed after this meeting with SEO
- GND issue
- Cabling issue
- Cleaning the center area
- Temperature control
- Cooler ON, compressor ON, FFU ON, ...
- PEM Rack arrange
- There are discussion about DAQ of the KAGRA PEM channels. PEM channels may be assigned in the IX0 and IY0 racks.
- Less effect from other models(less data loss)
- Change the place of the IX0 and IY0 rack (next to MCF and BS chamber?)
plan : GoogleSpreadsheet
- There are discussion about DAQ of the KAGRA PEM channels. PEM channels may be assigned in the IX0 and IY0 racks.
- for O4 preparation
- We measured the potential difference for SRM and PR2 rack
- Need the investigation more
- We measured the potential difference for SRM and PR2 rack
water fluid (github207)
Discussion with Furuta-san & a company is started
When will company people come? -> Waiting a demonstration machine.
read out of the lightning sensor (github182)
- Infrasound monitor @ Atotsu, Mozumi, (+ Toyama?)
- PEM injection for O4
- Large speaker @ End station
- Magnetic injection by large coil
- After O4
- RF monitor
- Tiltmeter
- RI detector
Rn : contact person -> Guillaume Pronostさん (ICRR, SK)
- cosmic-ray : plastic scintillator?
- gamma/neutron : 新学術地下宇宙
- start from a geiger counter?
- Newtonian noise
- Accelerometer for wall
- Relative temperature monitor
- Many seismometers
- Superconducting Gravimeter
- TOBA
Progress report
- Yokozawa
- Potential difference measurement at SRM and PR2 racks
- Washimi
Aacoustic injection paper overleaf
suspended due to writing KAKENHI <- finished
- Lightning sensor
Frequent lightning in Japan (KamioKaminari)
read out of the lightning sensor (github182)
- Fujikawa
- Lock loss study
- Kamioka visiting plan
- Kume
ICA analysis -> suspended until JPS
- Omicron and hveto study(Someone)