Name: ATF2 weekly meeting
Start: 2009-07-29T14:30:00+09:00
End: 2009-07-29T16:30:00+09:00
Location: No location set

- 14:30 → 15:30
  International phone/webex meeting
  - 14:30
    
    Reconstruction of electronic noise and beam fluctuations using strip-line and cavity BPMs 20m
    
    Further analysis of reproducibility of offsets in strip-line BPMs
    
    Speaker: Mr Yves Renier (LAL)
    
    Slides
  - 14:50
    
    Progress report on multi-OTR fabrication and confirmation of planned schedule for installation 20m
    
    Speakers: Dr Angeles Faus-Golfe (Instituto de Fisica Corpuscular - Valencia), Doug McCormick (SLAC)
    
    Slides
- 15:30 → 16:30
  KEK site meeting (Japanese)
  - 15:30
    
    Progress of Shintake monitor work 20m
    
    Speakers: Mr Masahiro OROKU (Tokyo Univ.), Mr Takashi Yamanaka (The University of Tokyo)
    
    Slides
    
    Time: 15:30(JST)~ Participants: Tauchi, Okugi, Kuroda, Kubo, Yamanaka, Oroku, Kamiya(WebEx) * Enlargement of the Laser Hut Q: where will you put the power supply unit of the laser which will be put in the extended laser hut? A: In the laser hut. In principle a power supply unit should be put outside of the laser hut to avoid vibration and heat source. However the present(old) laser will be put in the extended laser hut and it will be used only if an emergency arises. * IP target holder - It will be possible to limit the stroke of insertion stage to 100 mm by shorteing the holder length. * Correlation between laser position (angle) and phase - It seems that the feedback of the laser position is needed to stabilize the phase. Q: Is it possible to do the position feedback with the devices in hand? A: Yes. We have laser position detectors and motorized mirrors. Q: How can you explain this correlation? A: I think this is due to the change of the laser path length by the change of the laser angle. Q: If that so, the change of the phase should be the quadratic of the laser angle (Measured data shows it is linear.) A: It seems. I can't answer now.