Characterization of foam-filled hohlraums for inertial fusion experiments

2024/06/05 by Sam Iaquinta, Peter Amendt, Iaquinta, Sam +18 · 1 citation
Physics and Astronomy · #Magnetic confinement fusion research #Laser-Plasma Interactions and Diagnostics

paper · pdf · doi:10.48550/arxiv.2406.03475

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.

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• Experimental and simulative study on laser irradiation of 3D-printed micro-structures at intensities relevant for inertial confinement fusion

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