Spherical strong-shock generation for shock-ignition inertial fusiona)

摘要: Recent experiments on the Laboratory for Laser Energetics' OMEGA laser have been carried out to produce strong shocks in solid spherical targets with direct illumination. The are launched at pressures of several hundred Mbars and reach Gbar upon convergence. results relevant validation shock-ignition scheme development an experimental platform study material properties pressures. investigate strength ablation pressure hot-electron production incident intensities ∼2 6 × 1015 W/cm2 demonstrate exceeding 300 Mbar, which is crucial developing a target design National Ignition Facility. timing x-ray flash from shock convergence center plastic used infer Laser–plasma instabilities hot-electrons moderate temperature (<100 keV). instantaneous conversion efficiencies power into reached up ∼15% intensity spike. large amount hot electrons correlated earlier increase its magnitude. This suggests that contribute augmentation strength.