A. Richard et al., IMPLOSION OF D-2 TEMPERATURE-CONTROLLED CRYOGENIC FOAM TARGETS WITH PLASTIC ABLATORS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 49(2), 1994, pp. 1520-1526
The implosion hydrodynamics of temperature-controlled cryogenic deuter
ium foam targets with plastic ablators is investigated. The experiment
al data recorded with x-ray imaging systems are compared to a one-dime
nsional (1D) simulation. The ablation front trajectories derived from
x-ray streak-camera data agree with 1D simulation. However, an x-ray c
ore emission is observed at an earlier time, and for a longer duration
than that predicted. For the three liquid-fuel shots, the convergence
ratios are, respectively, 0.4, 0.9, and 0.7 times that predicted by t
he ID simulation.