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DOE OSTI · 2584739

Commission < 5 µm spatial resolution x-ray imager for High Resolution Turbulence experiments

Nagel, Sabrina [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]
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Abstract

This report presents the successful development, commissioning, and deployment of the Scintillation-Based X-ray Imager (SBXI) for the High-Resolution Turbulence (HRT) campaign at the National Ignition Facility (NIF). The SBXI system was designed to overcome the spatial resolution and efficiency limitations of conventional x-ray imaging detectors. Through careful system engineering, rigorous laboratory characterization, and experimental validation at NIF, the SBXI has demonstrated spatial resolution at the object plane of 5 μm (±0.5 μm) and a detective quantum efficiency (DQE) of 34% at 7.2 keV, both of which surpass the requirements set by the campaign, and meeting the L2 milestone. The system’s deployment enables high-fidelity imaging of fine-scale hydrodynamic instabilities, directly supporting advanced turbulence model validation and future high energy density physics research.

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Nagel, Sabrina [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]. 2025-08-25. Commission < 5 µm spatial resolution x-ray imager for High Resolution Turbulence experiments. https://doi.org/10.2172/2584739

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