Figure from the DOE Report October, 2017

October 2017 DOE Report

Finite Atwood-Number Effects on Deceleration-Phase Instability in Direct-Drive Implosions of Gas-Filled Capsules

Performance degradation in direct-drive inertial confinement fusion implosions can be caused by several effects, one of which is Rayleigh–Taylor (RT) instability growth during the deceleration phase.

Shown here are experimental ion-temperature variation versus fuel D:T ratio and Atwood number (top) and experimental yield over predicted yield (DD, DT) versus fuel D:T ratio and Atwood number (bottom).

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