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Morphology of Copper Nanofoams for Radiation Hydrodynamics and Fusion Applications Investigated by 3D Ptychotomography

Tags:
Computational Imaging Copper Foams IFE Related Imaging Inertial Confinement Fusion Nanomaterials Probes Ptychography Thickness Tomography
Adra Carr, Yancey Sechrest, Kevin Mertes, Brian Martin Patterson, Brendt Wohlberg, Levi Hancock, Nicholas Sirica, Richard Sandberg, Christine Sweeney, James Hunter, William Ward, Matthew H. Seaberg, Diling Zhu, Vincent Esposito, Eric Galtier, Sanghoon Song, Theodore F. Baumann, Michael Stadermann, Arianna Gleason, Nina R. Weisse-Bernstein Adra Carr, Yancey Sechrest, Kevin Mertes, Brian Martin Patterson, Brendt Wohlberg, Levi Hancock, Nicholas Sirica, Richard Sandberg, Christine Sweeney, James Hunter, William Ward, Matthew H. Seaberg, Diling Zhu, Vincent Esposito, Eric Galtier, Sanghoon Song, Theodore F. Baumann, Michael Stadermann, Arianna Gleason, Nina R. Weisse-Bernstein

Abstract:

The performance of metal and polymer foams used in inertial confinement fusion (ICF), inertial fusion energy (IFE), and high-energy-density (HED) experiments is currently limited by our understanding of their nanostructure and its variation in bulk material. We utilized an X-ray-free electron laser (XFEL) together with lensless X-ray imaging techniques to probe the 3D morphology of copper foams at nanoscale resolution (28 nm). The observed morphology of the thin shells is more varied than expected from previous characterizations, with a large number of them distorted, merged, or open, and a targeted mass density 14% less than calculated. This nanoscale information can be used to directly inform and improve foam modeling and fabrication methods to create a tailored material response for HED experiments.

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