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Electron acceleration by laser wakefield and x-ray emission at moderate intensity and density in long plasmas

Abstract : The dynamics of electron acceleration by laser wakefield and the associated x-rays emission in long plasmas are numerically investigated for parameters close to the threshold of laser self-focusing. The plasma length is set by the use of dielectric capillary tubes that confine the gas and the laser energy. Electrons self-injection and acceleration to the 170 MeVs are obtained for densities as low as 5 × 1018 cm−3 and a moderate input intensity (0.77 × 1018 W/cm2). The associated x-ray emission at the exit of the capillary tube is shown to be an accurate diagnostic of the electrons self-injection and acceleration process.
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https://hal.archives-ouvertes.fr/hal-01164320
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Submitted on : Tuesday, June 16, 2015 - 3:42:31 PM
Last modification on : Monday, December 6, 2021 - 6:38:02 PM

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H. E. Ferrari, A. F. Lifschitz, G. Maynard, B. Cros. Electron acceleration by laser wakefield and x-ray emission at moderate intensity and density in long plasmas. Physics of Plasmas, American Institute of Physics, 2011, 18 (8), pp.083108. ⟨10.1063/1.3624771⟩. ⟨hal-01164320⟩

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