Abstract
This work aims to analyse the tolerances given by two effects on the performance of the travelling-wave accelerating structure: the reflection along the structure and the change in the nominal accelerating voltage, which is essential for the projects with a large number of accelerating structures. The detuning and dephasing caused by systematic temperature shifts, systematic geometric errors and random geometric errors has been investigated in this paper. RF parameters of travelling-wave accelerating structure CLIC-K designed for klystron-based first stage of CLIC is used to defining the fabrication shape accuracy specification as well as the working temperature control for the high-gradient structurer if tuning is unfeasible.
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