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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Fast methods for geometric inference in limited-angle tomography Project #: NLV-019-20 Year 3 of 3
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Jet tomography in electron-ion collisions
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A Process to Colorize and Assess Visualizations of Noisy X-Ray Computed Tomography Hyperspectral Data of Materials with Similar Spectral Signatures.
Abstract not provided.
Fast Methods for Geometric Inference in Limited-Angle Tomography
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Fast Methods for Limited-Angle Tomography
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High Resolution Static and Dynamic Computed Tomography Analysis of West Virginia Oriskany Formation Cores for Carbon Capture Storage and Utilization in the Appalachian Basin
51st Annual Meeting of the Eastern Section American Association of Petroleum Geologists, Champaign, IL, October 24-25, 2022
X-ray Computed Tomography of Irradiated and Unirradiated AGR-3/4 Compacts A preliminary examination
What? Performed X-ray CT (XCT) on irradiated AGR-3/4 compacts Apparatus design Imaging results Preliminary analysis Extruded kernels DTF Identification Areas of interest for further exploration Why? Can provide non-destructive 3D perspective to enhance/compliment current PIE Potentially better quantitative measurements of certain features Better means of understanding any spatial distribution(s)
A New Momentum-Integrated Muon Tomography Imaging Algorithm
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Differentiable Forward Projector for X-ray Computed Tomography
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An Improved Process to Colorize Visualizations of Noisy X-Ray Hyperspectral Computed Tomography Scans of Similar Materials.
Abstract not provided.
Informing Mechanical Modeling of Additively Manufactured Al-Si10-Mg Through In Situ Computed Tomography.
Abstract not provided.
An Improved Process to Colorize Visualizations of Noisy X-Ray Hyperspectral Computed Tomography Scans of Similar Materials.
Abstract not provided.
Phase I Final Technical Report for SBIR Grant Number DE-SC0023584 “Computationally Mediated Tomography system for in situ TEM”
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X-ray Computed Tomography and Digital Volume Correlation Investigation of Defect Evolution and Strain Localization in Additively Manufactured 316L SS Tensile Coupons
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Workshop on Generalized Parton Distributions for Nucleon Tomography in the EIC Era
The aim of the workshop is to examine the theoretical components that need to be incorporated, challenges and opportunities in different LQCD formalisms for computing hadron properties non-perturbatively from the underlying fundamental theory, and the requirements for an analysis framework of experimental data. The outcome of the workshop will be a white paper, and the establishment of a collaborative effort aimed at tackling these challenges and ensuring that the resulting framework can be applied across the emerging theoretical and experimental programs.
Microstructural Characterization of Nb$_3$Sn Thin Films Using FIB Tomography
The accelerating gradient of N b3Sn superconducting radiofrequency (SRF) cavities is currently limited, and the underlying cause remains an open question in the field. One leading hypothesis attributes this limitation to the presence of tin-deficient regions within the N b3Sn coating, which can suppress the superheating field. Due to the relatively large coherence length of N b3Sn, defects near the surface may significantly interact with the RF field. However, these subsurface defects have proven difficult to characterize. This research aims to investigate the structure and distribution of subsurface Sn deficient regions to better understand their influence on cavity performance. We employ focused ion beam (FIB) tomography to analyze the subsurface microstructure of N b3Sn thin films. This technique enables threedimensional reconstruction of both the tin distribution and the grain structure within the film. By correlating Sn content with grain structure, we find that Sn deficient regions are more prevalent that previously thought. However, the Sn deficient regions are consistently located below the surface of the film where RF fields are strongly attenuated by supercurrent screening and are likely not a limiting factor for cavity performance