Melting and refreezing of zirconium observed using ultrafast x-ray diffraction
Abstract not provided
Radousky, Harry B.↗
SEARCH · Engineering Papers
Results for “ray”
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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The TES Beamline (8-BM) at NSLS-II: tender-energy spatially resolved X-ray absorption spectroscopy and X-ray fluorescence imaging
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99 GENERAL AND MISCELLANEOUS↗
Hard x-ray nanoprobe: a scanning hard x-ray microscopy beamline offering multi-modal imaging capabilities at 10 nm
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36 MATERIALS SCIENCE↗
Analysis of Dislocations in PVT-Grown 6H-SiC through Grazing-Incidence X-Ray Topographic Images and Ray-Tracing Simulation
Abstract not provided
Cheng, Qianyu↗
Copper Dissolution in Overdischarged Lithium-ion Cells: X-ray Photoelectron Spectroscopy and X-ray Absorption Fine Structure Analysis
Abstract not provided
Hendricks, Christopher E.↗
Feasibility of measuring ionic diffusion in x-ray heated foils using x-ray radiography on Z.
Abstract not provided.
Knapp, Patrick↗
Data Analysis of X-ray Panels Used in X-ray CT Scientific Instruments
This report is a follow-up study on M. Skeate’s study on System Drift Detection for Health Monitoring (Skeate, 2023). The following report highlights analyses of the panel’s behavior with extended use. This includes effects of burn-in on the panel from over-use and bad pixels (defined in Methodology.) Using data-forward statistical analyses across a sequence of scans, and given that the other conditions present in the data can be replicated, this study show that overtime use of panels does not affect bad pixel count. Also, I present conclusive evidence of a direct relationship between the regions of the panel that are exposed to radiation and burn-in damage to that region overtime. Additionally, this study also highlights the effect of the duty cycle on the dark current change in the panel.
42 ENGINEERING↗
CHARACTERIZATION OF MOS2 FILMS VIA SIMULTANEOUS GRAZING INCIDENCE X-RAY DIFFRACTION AND GRAZING INCIDENCE X-RAY FLUORESCENCE (GIXRD/GIXRF)
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Rodriguez, Mark Andrew↗
Laser-irradiated X-ray sources for X-ray diffraction of dynamically compressed matter on Sandia's Z-Machine
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Ao, Tommy↗
Combining a pulsed power driven x-ray source with a dynamic material properties load for x-ray diffraction measurements on Sandia's Z-Machine
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Ao, Tommy [Sandia National Laboratories (SNL-NM), ↗
Using In-Situ Laboratory and Synchrotron-Based X-ray Diffraction for Lithium-Ion Batteries Characterization: A Review on Recent Developments
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99 GENERAL AND MISCELLANEOUS↗
Temperature Dependent X-ray Fluorescent Response from Thermographic Phosphors under X-ray Excitation.
Abstract not provided.
Westphal, Eric↗
Development of multiframe time-gated x-ray backlighting for the Z Facility using a multipulse laser-produced-plasma x-ray source.
Abstract not provided.
Edens, Aaron↗
Design of multilayer-based diagnostics for high energy x-ray and gamma ray experiments
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Optics and optical instruments↗
Long duration x-ray source development for time-resolved x-ray diffraction at the National Ignition Facility
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Physics - Solid state physics, Physics - Plasma ph↗
Iron redox analysis of silicate-based minerals and glasses using synchrotron X-ray absorption and laboratory X-ray emission spectroscopy
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99 GENERAL AND MISCELLANEOUS↗
Simultaneous Dark- and Bright-Field X-ray Microscopy at X-ray Free Electron Lasers
Author list is preliminary (author list may change, and when I listed all the authors, the list was too long for this form to accept.). This is to be submitted to Nature's Scientific Reports
SDRD↗
Validation of realistic Monte Carlo plasma gamma-ray source on JET discharges
A novel modelling methodology has been developed for the creation of a realistic plasma gamma-ray source for Monte Carlo transport simulations in the tokamak JET. The methodology couples the TRANSP code for plasma transport calculations with the MCNP Monte Carlo particle transport code, thus connecting plasma physics with gamma-ray transport. Here, we present the validation of the developed source methodology by comparing calculated gamma-ray spectra with measurements performed at JET. The validation focuses on gamma-ray spectra measured by the tangential gamma-ray spectrometer during two JET three ion RF scenario discharges, performed in the JET 2019 deuterium experimental campaign. For validation the calculated plasma gamma-ray spectrum was combined with the neutron induced prompt gamma-ray background, originating in the vacuum vessel, and scaled to absolute values calculating the total number of plasma gamma-ray and neutron emitting reactions. The comparison between calculated and measured gamma-ray spectra shows good agreement with the shape of the calculated gamma-ray spectra matching that of measurements for both studied discharges. Moreover, the calculated absolute values of the gamma-ray spectra were of the same order of magnitude at the position of the gamma-ray detector located at the end of a long line-of-sight in a biological shield. Finally, the comparison has validated the developed plasma gamma-ray source methodology for MCNP photon transport calculations at JET. The validation provides a basis for the developed plasma gamma-ray source to be used as a support for the development of future tokamaks such as DEMO.
70 PLASMA PHYSICS AND FUSION TECHNOLOGY↗