Fig. 2: Schematic of the HD experiments.

a The target chamber has a diameter of 6 m, Velocity Interferometer System with Any Reflector (VISAR) is for measuring the shock velocities, the flat-response x-ray diode (FXRD) is for measuring the radiation temperature Tr, the filtered fluorescence (FF) spectrometer is for measuring the hot-electron energy, the nearby backscatter station (NBS) and the full aperture backscatter station (FABS) are for measuring the backscattered laser energy. b Laser power for ID (black) and DD (red) vs time. c The hemispherical target, consisting of CH, Al, and quartz (SiO2) layers, mounted in a hole in the bottom of the semicylindrical hohlraum. The ID lasers (blue) and the DD lasers (pink) enter the hohlraum through LEH, and the VISAR light arrives in the quartz layer via the reflector, which all are monitored by a static imaging system in the target chamber.