Phys. Rev. Lett. 96, 045001 (2006) [4 pages]Hose Instability and Wake Generation by an Intense Electron Beam in a Self-Ionized GasReceived 2 June 2005; published 30 January 2006 The propagation of an intense relativistic electron beam through a gas that is self-ionized by the beam’s space charge and wakefields is examined analytically and with 3D particle-in-cell simulations. Instability arises from the coupling between a beam and the offset plasma channel it creates when it is perturbed. The traditional electron hose instability in a preformed plasma is replaced with this slower growth instability depending on the radius of the ionization channel compared to the electron blowout radius. A new regime for hose stable plasma wakefield acceleration is suggested. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.96.045001
DOI:
10.1103/PhysRevLett.96.045001
PACS:
52.40.Mj, 52.25.Jm, 52.35.Py
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