Publications by authors named "B J Kozioziemski"
Article Synopsis
- * Extended X-ray Absorption Fine Structure (EXAFS) is an effective technique for assessing material temperature and density for certain elements under dynamic compression.
- * The National Ignition Facility has created different configurations for EXAFS measurements using advanced x-ray sources and curved-crystal spectrometers to improve material analysis in both standard and extreme conditions.
Article Synopsis
- - The text discusses the design of sagittally focusing x-ray crystal spectrometers that use elliptical profiles to enhance plasma diagnostics, especially in scenarios with high neutron emissions.
- - These spectrometers are designed with adjustable radii of curvature to focus on different photon energies and optimize the arrangement to minimize neutron background interference.
- - Two spectrometer designs are proposed: one for x-ray continuum spectroscopy with high magnification and limited resolution, and another for time-resolved spectroscopy with high demagnification aimed at improving spectral resolution, which have been validated through ray tracing.
An indirect-drive inertial fusion experiment on the National Ignition Facility was driven using 2.05 MJ of laser light at a wavelength of 351 nm and produced 3.1±0.
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- * This experiment produced 2.05 MJ of laser energy, resulting in 3.1 MJ of total fusion yield, which exceeds the Lawson criterion for ignition, demonstrating a key milestone in fusion research.
- * The report details the advancements in target design, laser technology, and experimental methods that contributed to this historic achievement, validating over five decades of research in laboratory fusion.
Large scale high-energy density science facilities continue to grow in scale and complexity worldwide. The increase in driver capabilities, including pulsed-power and lasers, continue to push the boundaries of temperature, pressure, and densities, opening up new physics regimes. X-ray imaging is one of the many diagnostic techniques that are used to probe states of matter in these extreme conditions.
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