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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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Interfacial X-Ray Scattering from Small Surfaces: Adapting Mineral-Fluid Structure Methods for Microcrystalline Materials
Crystal truncation rod (CTR) X-ray diffraction is an invaluable tool for measuring mineral surface and adsorbate structures, and has been applied to several environmentally and geochemically important systems. Traditionally, the method has been restricted to single crystals with lateral dimensions >3 mm. Minerals that meet this size criterion represent a minute fraction of those that are relevant to interfacial geochemistry questions, however. Crystal screening, data collection, and CTR measurement methods have been developed for crystals of <0.3 mm in lateral size using the manganese oxide mineral chalcophanite (ZnMn 3 O 7 •3H 2 O) as a case study. Furthermore, this work demonstrates the feasibility of applying the CTR technique to previously inaccessible surfaces, opening up a large suite of candidate substrates for future study.
Generation of high-resolution thermal scattering laws for solid moderators using fast Fourier transforms
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Chain arrangements of selectively deuterated poly(ε-caprolactone) copolymers as revealed by neutron scattering
Abstract not provided
The Neutron Scattering Cross Section and Angular Distribution Measurement Program at LANL
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A quantitative structural characterisation of active semiconducting materials (mSi; SiO[subscript 2]; Al[subscript 2]O[subscript 3]; TiO[subscript 2]) for use in printed electronics using a combination of Small Angle Light Scattering (SALS) and Ultra Small Angle X-ray Scattering (USAXS)
Abstract not provided
Silica Raman scattering probe for absolute calibration of Thomson scattering spectrometers
Not provided.
Neutrino cross sections: Interface of shallow- and deep-inelastic scattering for collider neutrinos
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Odderon Exchange from Elastic Scattering Differences between p p and p p ¯ Data at 1.96 TeV and from p p Forward Scattering Measurements
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Phase-contrast imaging of multiply-scattering extended objects at atomic resolution by reconstruction of the scattering matrix
Not Available
Measuring bulk angular scattering in atmospherically relevant degraded visual environments
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Nonequilibrium magnons studied by inelastic neutron scattering
In this work, we explore time-resolved dynamics of non-equilibrium magnons in Rb2MnF4, a model two-dimensional square lattice Heisenberg antiferromagnet using a novel laser-neutron pump-probe technique. This technique uses a nanosecond pulsed laser to periodically excite magnons to out-of-equilibrium states and then probe the resulting dynamics using INS.