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abstract:
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Several promising schemes for high-gradient acceleration of charged particles in planar electromagnetic structures have been recently proposed. In this paper we investigate, by both computer simulation and theoretical analysis, the longitudinal and transverse wake-fields experienced a relativistic charged particle in a planar structure. We show that, in the limit of a large aspect ratio beam, the net deflecting wake-fields vanishes. Practical implications of this result for short wavelength advanced accelerators are discussed.
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