Difference: FJPPLprojectsAccelerateurRD (11 vs. 12)

Revision 122014-09-04 - Main.GenevieveGilbert

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META TOPICPARENT name="FJPPLprojects"
A_RD_1 : Development of an optical cavity system for advanced photon sources
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A_RD_10 : Nanometer stabilization studies at ATF2
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<		Summary
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>		Summary :
As a demonstrator for Future Linear Colliders (LC) with nanometer (nm) size e+-e- beams, ATF2 (Accelerator Test Facility) has achieved 44nm vertical beam size, very near to its 37nm goal. It is realized under low intensity beam and the studies on beam intensity dependence will continue. Next major step for our French and Japanese Teams is maintaining the beam position stability of 2nm at IP. To achieve this, Beam Position Monitors, used with an efficient upstream feedback, will be installed and calibrated in a vacuum chamber with internal moving mechanisms. Ground Motion (GM) sensors will be tested for the development of a new GM feedforward acting on the beam stability. Additional Beam Instrumentation like an in-vacuum diamond sensor for beam halo and linear Compton scattering measurements will be developed. This project is an ideal precision study for the training of students.
  French members :
A. Jeremie,
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 J. Urakawa, H. Yamaoka
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>		References :
[[1] ATF2 PROPOSAL. VOL. 2. B.I. Grishanov et al., DESY-06-001, CERN-AB-2006-004, ILC-ASIA-2005-26, JAI-2006-001, KEK-REPORT-2005-9, SLAC-R-796, UT-ICEPP-05-04. [2] Bambade P. et al, Present status and first results of the final focus beam line at the KEK Accelerator Test Facility, Phys. Rev. ST Accel. Beams 13, (2010) 042801. [3] G.White et al, Experimental Validation of a Novel Compact Focusing Scheme for Future Energy-Frontier Linear Lepton Colliders, Phys. Rev. Lett. 112 (2014) 034802.
 
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>		website : http://lcdev.kek.jp/ATF2/
 
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