(a) Schematic of the setup of the backlighter experiment with a Cu foil irradiated by the OMEGA EP short-pulse beam and using 54 OMEGA beams to implode a cone-in-shell target. A 50-μm-thick Al foil was located 2 mm from the Cu foil to shield it from plasma and X-ray radiation from the implosion. A raw image of the fuel assembly is shown in the image plane. The distances are not to scale. (b) Illustration of the cone-in-shell target. (c) Laser pulse shape to implode the capsule. (d) Time-resolved Kα X-ray emission from a Cu foil target irradiated with an ~1-kJ, 10-ps pulse.