Abstract
This article focusses on a beam dynamics study for the linacs of the ILC. In particular, the impact of long-range transverse wakefields on the beam quality is studied for the case in which the ILC would be built using the new low surface field (NLSF) superconducting cavities. This presents an alternative design to the baseline TESLA-style cavities. The progress of the beam down ~10km of each linac is simulated using the tracking computer code PLACET. In addition, the results of an analytical matrix method, in which the beam is subjected to identical wakefields from each cavity, are also presented. Both systematic and random errors, arising as a natural process during fabrication, are implemented in the beam tracking study. The latter source of error is found to be beneficial, as emittance dilution is reduced due to the beam receiving non-coherent kicks.
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