(Color online) Refluxing efficiency obtained from the capacitance model. The hot-electron temperature is assumed to depend on laser intensity according to the ponderomotive scaling (see Ref. 6).
(Color online) production efficiency versus laser intensity for -thick foils. The semi-analytic model with refluxing and a 10% hot-electron conversion efficiency (lower solid line) agrees with the LSP calculation (circles) and the experimental data (triangles). Also shown are the model predictions with no refluxing (dashed lines). The predictions, and not the data, have been corrected for re-absorption in the target.
(Color online) Experimental (red solid) and (blue open) production efficiency as a function of laser intensity for both the 100-TW laser system (crosses) and the PW laser for short pulses (squares) and long pulses (diamonds). Only targets having a volume greater than are shown.
(Color online) Experimental production efficiency from the 100-TW system (crosses) and PW laser system with short pulses (squares) and long pulses (diamonds) as a function of laser intensity. The predictions of the semi-analytic model with hot-electron conversion efficiencies taken from a fit to Nova PW data are indicated by the red area bounded by dashed lines. The solid blue curves are lines of constant hot-electron conversion efficiency.
(Color online) Reduction in the ratio of to total -emission probability as a function of plasma temperature, based on the Thomas-Fermi average ionization state (inset).
(Color online) The images show target heating from four three-dimensional LSP calculations on a slice perpendicular to the target normal taken at a depth of from the target surface. The heating was computed with 10 and of energy in hot electrons (columns) and for target volumes of and (rows). Only one quadrant of each foil was modeled, the remainder completed by assuming symmetry about the and axes.
(Color online) Experimental ratio of to yield from the RAL 100-TW (crosses) and RAL PW (squares, diamonds, and circles) as a function of target volume. The open diamonds show LSP predictions in the cases of of energy in hot electrons (upper light blue) and (lower dark red).
(Color online) Image of emission obtained from three-dimensional LSP calculations.
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