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Coupled beam hose and self-modulation instabilities in overdense plasma

C. B. Schroeder1, C. Benedetti1, E. Esarey1, F. J. Grüner2, and W. P. Leemans1

  • 1Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 2Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany

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Phys. Rev. E 86, 026402 – Published 6 August, 2012Erratum Phys. Rev. E 87, 019902 (2013)

DOI: https://doi.org/10.1103/PhysRevE.86.026402

Abstract

Transverse stability of the drive beam is critical to plasma wakefield accelerators. A long, relativistic particle beam propagating in an overdense plasma is subject to beam envelope modulation and centroid displacement (hosing) instabilities. Coupled equations for the beam centroid and envelope are derived and solved. It is shown that the hosing growth rate is comparable to self-modulation, and coupling of the self-modulation enhances beam hosing and induces harmonic content. Large amounts of hosing significantly alters the structure of the plasma wakefields.

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Erratum

Erratum: Coupled beam hose and self-modulation instabilities in overdense plasma [Phys. Rev. E 86, 026402 (2012)]

C. B. Schroeder, C. Benedetti, E. Esarey, F. J. Grüner, and W. P. Leemans
Phys. Rev. E 87, 019902 (2013)

Article Text

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Phys. Rev. E 86, 026402– Published 6 August, 2012
  • Received 29 February 2012
Article part of CHORUS

©2012 American Physical Society

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