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1. Characterization of foam-filled hohlraums for inertial fusion experiments

Author

Iaquinta, Sam, Amendt, Peter, Milovich, Jose, Dewald, Eduard, Divol, Laurent, Jones, Ogden, Suter, Larry, Wallace, Russel, Bingham, Robert, Glenzer, Siegfried, and Gregori, Gianluca

Subjects
Physics - Plasma Physics
Abstract

On the path towards high-gain inertial confinement fusion ignition, foams are being considered to tamp the hohlraum wall-motion, and mitigate laser backscattering from Stimulated Raman Scattering (SRS) and Stimulated Brillouin Scattering (SBS). Here we present the results from an experimental campaign on foam-filled hohlraums conducted at the OMEGA laser facility. SiO2 foam-fills, with densities as low as 1 mg/cm3, successfully reduce the gold wall expansion, with laser backscattering comparable to gas-fill.

Published
2024

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