[SLAC] [SLAC Pubs and Reports]
SLAC-PUB-7935
Effects of Alternating Cell Misalignments on the DDS
Abstract
We study some effects of cell misalignements in accelerator structures
in which each cell is displaced the same amount and direction but with
sign which alternates from cell to cell. In particular we study the
manifold radiation in a damped detuned structure (DDSI) and wakefield
effect in a uniform constant impedance structure. A synchronous wave
aliasing phenomenon is observed. In previous treatments the effect of
cell misalignment has been modeled by replacing it by beam
displacement. Here we compare finite difference simulation of cell
misalignment with the beam displacement model. We conclude with
discussions about the relevance of our results for general
misalignment profiles.
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