Results are presented from an investigation of the hard X-ray spectrum and the parameters of fast particles in experiments
on the interaction of laser pulses with solid targets in the PROGRESS-P facility at laser intensities of up to 5×1018 W/cm2 on the target surface. The maximum energy of fast electrons obtained from direct measurements is found to be 8–10 MeV.
[Show abstract][Hide abstract] ABSTRACT: Oblique incidence of a $p$-polarized laser beam on a fully ionized plasma with a low density plasma corona is investigated numerically by Particle-In-Cell and Vlasov simulations in two dimensions. A single narrow self-focused current jet of energetic electrons is observed to be projected into the corona nearly normal to the target. Magnetic fields enhance the penetration depth of the electrons into the corona. A scaling law for the angle of the ejected electrons with incident laser intensity is given. Comment: 5 pages, 3 figures, minor modifications and extensions
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