Phys. Rev. Lett. 99, 255001 (2007) [4 pages]Hosing Instability in the Blow-Out Regime for Plasma-Wakefield AccelerationReceived 15 February 2007; published 17 December 2007 The electron hosing instability in the blow-out regime of plasma-wakefield acceleration is investigated using a linear perturbation theory about the electron blow-out trajectory in Lu et al. [in Phys. Rev. Lett. 96 165002 (2006)]. The growth of the instability is found to be affected by the beam parameters unlike in the standard theory Whittum et al. [ Phys. Rev. Lett. 67 991 (1991)] which is strictly valid for preformed channels. Particle-in-cell simulations agree with this new theory, which predicts less hosing growth than found by the hosing theory of Whittum et al. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.99.255001
DOI:
10.1103/PhysRevLett.99.255001
PACS:
52.40.Mj, 29.27.Bd, 52.35.−g, 52.65.Rr
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