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Current Filamentation Instability in Laser Wakefield Accelerators

Research output: Contribution to journalJournal article

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  • C. M. Huntington
  • A. G. R. Thomas
  • C. McGuffey
  • T. Matsuoka
  • V. Chvykov
  • G. Kalintchenko
  • S. Kneip
  • Z. Najmudin
  • C. Palmer
  • V. Yanovsky
  • A. Maksimchuk
  • R. P. Drake
  • T. Katsouleas
  • K. Krushelnick
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Article number105001
<mark>Journal publication date</mark>8/03/2011
<mark>Journal</mark>Physical Review Letters
Issue number10
Volume106
Number of pages4
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

Experiments using an electron beam produced by laser-wakefield acceleration have shown that varying the overall beam-plasma interaction length results in current filamentation at lengths that exceed the laser depletion length in the plasma. Three-dimensional simulations show this to be a combination of hosing, beam erosion, and filamentation of the decelerated beam. This work suggests the ability to perform scaled experiments of astrophysical instabilities. Additionally, understanding the processes involved with electron beam propagation is essential to the development of wakefield accelerator applications.