Fig. 6: Plasma-wakefield simulations.
From: Recovery of hydrogen plasma at the sub-nanosecond timescale in a plasma-wakefield accelerator
a Ion-density map was obtained after the passage of the pump beam. The initial density was set to np = 1014 cm−3. b Plasma wakefield acting on the probe beam (whose contour is indicated by the white dashed lines) with the pump beam turned off (top) and on (bottom). The dotted red lines show the radial plasma profiles. c Resulting energy distributions of the probe beam. The spectra are obtained at the end of the beam-plasma interaction and over a total length of 5 cm.
