An Investigation of Optimised Frequency Distributions for Damping Wakefields in X-Band Linacs for the NLC
R. M. Jones, N. M. Kroll, R. H. Miller, T. O. Raubenheimer, G. V. Stupakov
Abstract
In the NLC (Next Linear Collider) small misalignments in each of the individual accelerator structures (or the accelerator cells) will give rise to wakefields which kick the beam from its electrical axis. This wakefield can cause BBU (Beam Break Up) or at the very least it will dilute the emittance of the beam. Several Gaussian detuned structures have been designed and tested [1] at SLAC and in this paper we explore new distributions with possibly better damping properties. The progress of the beam through approximately 5,000 structures is monitored in phase space and results on this are presented. [1] J.W. Wang et al, TUA03, LINAC2000
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