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Simulation of transverse modes with their intrinsic Landau damping for bunched beams in the presence of space charge

Alexandru Macridin, Alexey Burov, Eric Stern, James Amundson, and Panagiotis Spentzouris

  • Fermilab, P.O. Box 500, Batavia, Illinois 60510, USA

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Phys. Rev. ST Accel. Beams 18, 074401 – Published 22 July, 2015

DOI: https://doi.org/10.1103/PhysRevSTAB.18.074401

Abstract

Transverse dipole modes in bunches with space charge are simulated using the synergia accelerator modeling package and analyzed with dynamic mode decomposition. The properties of the first three space charge modes, including their shape, damping rates, and tune shifts are described over the entire range of space charge strength. The intrinsic Landau damping predicted and estimated in 2009 by one of the authors is confirmed with a reasonable scaling factor of ≃2.4. For the KV distribution, very good agreement with PATRIC simulations performed by Kornilov and Boine-Frankenheim is obtained.

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Phys. Rev. ST Accel. Beams 18, 074401– Published 22 July, 2015
  • Received 29 May 2015
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