Simultaneous Measurements of Fuel Areal Density, Shell Areal Density, and Fuel Temperature in D3He-Filled Imploding Capsules

LLE Review, Volume 78 93 Measurements of the charged-particle products of the fusion reactions from an imploding inertial fusion capsule can provide a direct means of characterizing key aspects of the implosion dynamics. Parameters such as the fusion yield, fuel ion temperature, capsule convergence, fuel and shell areal densities, and implosion asymmetry can be inferred by these measurements and can complement and augment similar measurements made using fusion neutrons or x-ray techniques. In addition, such measurements provide unique information on charging up the target and on charged-particle acceleration. In collaboration with MIT and LLNL, LLE has developed two charged-particle magnetic spectrometers that have been implemented on OMEGA.