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Abstract: We examine the stability of intense flat bunches in barrier buckets used inthe Recycler. We consider some common stationary distributions and show thatthey would be unstable against rigid dipole oscillations. We then discuss ananalytical model for the line density that best describes measured bunchprofiles. We include space charge in this model to predict the bunch intensityat which Landau damping would be lost. The dependence of this threshold on thebunch length is studied and related to the results of an experimental studywith shorter bunch lengths. The threshold for the microwave instability isestimated. These studies will be followed by more detailed numerical studies.



Author: T. Sen, C.M. Bhat, J.-F. Ostiguy

Source: https://arxiv.org/







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