The simulation setup is shown. Laser light, with wavelength and intensity, 350 fs duration is injected at the left and impacts the blow off plasma at . Solid density Au extends from . A thin contaminant layer is placed on the back side of the foil.
The transverse electric field magnitude in the blow off plasma is shown after (a) 100, (b) 200, (c) 300, and (d) for the nominal Au slab simulation. The light propagates to before it is absorbed or reflected.
The kinetic electron density is shown for (a) 100, (b) 200, (c) 300, and (d) for the 3 ML Au slab simulation.
The net current is plotted after into the simulation with the 3 ML hydrogen Au foil. The legend shows the current enclosed within a given radius in MA.
The space-charge potential (a)–(c) and proton density (d)–(f) are plotted at 1, 1.5, and 2 ps into the nominal Au slab simulation.
The proton axial momentum versus is plotted at (a) , (b) , (c) , and (d) into the plastic slab simulation.
The electron axial momentum versus is plotted at (a) 1, (b) 1.5, and (c) into the nominal Au slab simulation. Note the neutralizing electrons are mostly relativistic.
From left to right, the (a) proton beam energy, (b) current, and (c) emittance at is plotted for two simulations. The simulations include the Au slab with of hydrogen on the back surface and the plastic slab.
(Color) For the nominal 3 ML proton simulation, the (a) electron radius, (b) electron current, (c) proton radius, and (d) proton current are plotted versus time at four axial planes.
The kinetic electron density is shown for (a) 100, (b) 200, (c) 300, and (d) for the 2D, 3 ML Au slab simulation.
The magnetic field after is shown for the (a) 2D fully kinetic Cartesian, (b) 3D hybrid cylindrical, and (c) 2D hybrid Cartesian simulations all with 3 ML hydrogen and Au slab.
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