ATF2 weekly meeting

Wednesday 15 Jul 2009, 14:30 → 16:30 Asia/Tokyo

Draft Minutes 7/21, addition after the meeting in blue d090715.html

International phone/webex meeting

1 Investigation into the anomalous strength of ZV1X

Speaker: Mark Woodley (SLAC)

Slides EXT_ZV1X.pdf EXT_ZV1X.ppt

2 Installation of Straightness monitor and MFB2

Speakers: Prof. Michael Hildreth (University of Notre Dame), Dr Yosuke Honda (KEK)

Ref. of pulse-to-pulse fedback bpms-feedback.pdf

Slides ATF2_installation_report.pdf ATF2_installation_report.ppt

3 Quick test results of Monalisa at IP, ATF2

Speakers: Dr David urner (University of Oxford), Dr Paul Coe (John Adams Institute for Accelerator Science, University of Oxford)

Slides 15_07_2009_MONALISA_at_ATF2_final.pdf 15_07_2009_MONALISA_at_ATF2_final.ppt

KEK site meeting (Japanese)

4 Progress of Shintake monitor work

Speakers: Mr Masahiro OROKU (Tokyo Univ.), Mr Takashi Yamanaka (The University of Tokyo)

Slides Progress_of_the_Shintake_Monitor_Work_090715.pdf Progress_of_the_Shintake_Monitor_Work_090715.ppt

Participants: Tauchi, Terunuma, Okugi, Kuroda, Kubo, Oroku, Yamanaka, Kamiya(WebEx) Time: 16:30(JST)~ * Screen Monitor and Knife Edge - add tungsten wire scanner for vertical beam size measurement at the IP - better to attach several wires - Wires should be attached to the end so that easily incerted * Background Photon Reproduction with Computer Simulation - It seems not to be a important issue. - Rather, it may be useful to study SAD calculation * MONALISA installation - Regaring the phase stability, the MONALISA system doesn't affect so much to the Shintake monitor. - However, it is the urgent task to measure beam size with the interference mode. So it is desired to install the MONALISA after the confirmation of this measurement. * Chamber Replacement at the Final Bending Magnet - Originally, the chamber in stock is planed to be altered to have larger aperture. - Because of the residual radiation of that chamber, the new chamber becomes necessary * Phase Stability - 1 minute phase stability is within tolerance (smaller than table vibration) - It is desired to find out the reason why the phase drifts in long term.