Output list
Journal article
Exploring strain rate effects upon 3D materials using high speed in situ X-ray tomoscopy
First online publication 11/13/2025
Tomography of Materials and Structures, 9, 100080
Journal article
A spectroscopic analysis code for spatially resolved x-ray absorption data from the COAX platform
First online publication 09/17/2024
Review of Scientific Instruments, 95, 9, 093526
Journal article
Experimental quantification of the impact of heterogeneous mix on thermonuclear burn
Published 02/01/2022
Physics of plasmas, 29, 2, 022702
Journal article
Development of Stochastic Voronoi Lattice Structures via Two-Photon Polymerization
Published 01/02/2022
Fusion Science and Technology, 78, 1, 66-75
Journal article
Published 06/01/2021
Microbiology resource announcements, 10, 25, e0049521 - e0049521
The siderophilic, thermophilic Leptolyngbyaceae cyanobacterium JSC-12 was isolated from a microbial mat in an iron-depositing hot spring. Here, we report the high-quality draft genome sequence of JSC-12, which may help elucidate the mechanisms of resistance to extreme iron concentrations in siderophilic cyanobacteria and lead to new remediation biotechnologies.
Journal article
A temperature profile diagnostic for radiation waves on OMEGA-60
Published 06/2021
High Energy Density Physics, 39, 100939
Journal article
Detrimental effects and mitigation of the joint feature in double shell implosion simulations
Published 05/01/2021
Physics of plasmas, 28, 5, 52703
Double shell capsules provide an attractive option in inertial confinement fusion experiments due to their potential for achieving a low-convergence, robust burn. However, these designs suffer from symmetry degradation and accompanying reduced fuel confinement due to the currently necessary joint between the two hemispheres of the outer shell. The gap widens as a result of the excess ablation pressure produced by x rays that penetrate the joint during the drive phase, and this perturbation grows and imprints onto the inner shell during the collision. xRAGE Eulerian radiation-hydrodynamic simulations predict significant reductions in deuterium-tritium fusion yields compared to joint-less simulations when the depth of the outer joint is increased, whereas the performance is less sensitive to the depth of the inner gap. Here we examine the technique of plating the insides of the outer gap with a high-Z material to mitigate the impact of this feature. Gold-plating in quantities comparable to or exceeding the "missing" outer shell mass shows promise toward restoring both implosion symmetry and yield closer to the joint-less levels, and synthetic diagnostics suggest that high-energy x-ray radiographs can capture this shape retention of the inner and outer shells in experiments.
Journal article
Detrimental effects and mitigation of the joint feature in double shell implosion simulations
Published 05/01/2021
Physics of Plasmas, 28, 5, 052703
Journal article
Published 12/2020
Physics of Plasmas, 27, 12, 122702
Journal article
Published 10/02/2020
Fusion science and technology, 76, 7, 795 - 806
One of the great challenges of inertial confinement fusion and high energy density experiments is understanding the effects of mix on thermonuclear burn. The MARBLE campaign, conceived at Los Alamos National Laboratory, aims to gather new insights into this issue by utilizing unique target capsules containing polymer foams of variable pore sizes, tunable over an order of magnitude. Such capsules allow the degree of initial heterogeneity to be controlled experimentally for the first time. Here, we describe the various characterization efforts used to gain understanding of the chemical structure and behavior of the foam. Previous experiments were not sensitive to foam physical properties, and the MARBLE platform has aided in the development of techniques to measure foam properties such as deuterium content, density variation, hydrogen adsorption, and pore size and volume distribution.