Femtosecond pulse trains of polychromatic inverse Compton γ-rays from designer electron beams produced by laser-plasma acceleration in plasma channels

Abstract : Propagating a short, relativistically intense laser pulse in a plasma channel makes it possible to generate clean comb-like electron beams – sequences of synchronized, low phase-space volume bunches with controllable energy spacing [S. Y. Kalmykov et al., “Accordion Effect Revisited: Generation of Comb-Like Electron Beams in Plasma Channels,” in Advanced Accelerator Concepts: 16th Workshop, AIP Conference Proceedings; this volume]. All-optical control of the electron beam phase space structure via manipulation of the drive pulse phase (negative chirp) and parameters of the channel enables the design of a tunable, all-optical source of polychromatic pulsed γ-rays using the mechanism of inverse Compton scattering.
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S.Y. Kalmykov, I.A. Ghebregziabher, X. Davoine, R. Lehe, A.F. Lifschitz, et al.. Femtosecond pulse trains of polychromatic inverse Compton γ-rays from designer electron beams produced by laser-plasma acceleration in plasma channels. 16thAdvancedAcceleratorConceptsWorkshop, Jul 2014, San Jose, United States. pp.080007, ⟨10.1063/1.4965664⟩. ⟨hal-01554283⟩

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