Beams Document 2514-v1

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Dynamical Alignment in presence of ground motion & technical noise

Document #:
Beams-doc-2514-v1
Document type:
Note
Submitted by:
Paul Lebrun
Updated by:
Paul Lebrun
Document Created:
10 Oct 2006, 14:58
Contents Revised:
10 Oct 2006, 14:58
Metadata Revised:
10 Oct 2006, 14:58
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Abstract:
The ground motion (GM) and technical noise are the important limiting factor in the performance of modern linear colliders. They continuously misalign the elements of accelerating structure and beam delivery system. It needs the efficient dynamic alignment procedure to preserve the transversal emittance and to optimize the luminosity factor of the linear collider. The GM model implemented by A. Seryi for the LIAR code is used to provide some simulations for the ILC project with using the experimental data obtained at the Aurora site and compare them with the results published before. The one-to-one steering algorithm is used to study the performance of various subsystems of ILC. One of the goals of this work was to embed the GM model to the CHEF code developed at FNAL. For that the original Fortran algorithms have been rewritten in C++.
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Keywords:
alignment ILC
Notes and Changes:
Talk presented at the International Accelerator Alignment workshop, SLAC, Oct. 2006
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