Results 211 to 220 of about 124,527 (264)
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Nanotechnology, 2023
Abstract Autonomous experimentation (AE) is an emerging paradigm that seeks to automate the entire workflow of an experiment, including—crucially—the decision-making step. Beyond mere automation and efficiency, AE aims to liberate scientists to tackle more challenging and complex problems.
Kevin G Yager +3 more
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Abstract Autonomous experimentation (AE) is an emerging paradigm that seeks to automate the entire workflow of an experiment, including—crucially—the decision-making step. Beyond mere automation and efficiency, AE aims to liberate scientists to tackle more challenging and complex problems.
Kevin G Yager +3 more
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1999
X-ray scattering methods with polymers generally require a source of monochromated radiation, which for convenience is usually Cu-Kα with a wavelength of 0.15418 nm, giving optimum compromise between resolution and scattered intensity. Scattering studies can give at wide angles (WAXS) information about the crystal structure, the crystallinity and the ...
MEILLE, STEFANO VALDO, S. Brückner
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X-ray scattering methods with polymers generally require a source of monochromated radiation, which for convenience is usually Cu-Kα with a wavelength of 0.15418 nm, giving optimum compromise between resolution and scattered intensity. Scattering studies can give at wide angles (WAXS) information about the crystal structure, the crystallinity and the ...
MEILLE, STEFANO VALDO, S. Brückner
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X-Ray Tomography in Scattering Media
SIAM Journal on Applied Mathematics, 1996Summary: We treat the problem of tomography of a medium with a high scattering level. A mathematical approach has been developed for an investigation of the radiation field. Based on these results a special source-detectors configuration is proposed.
Victor S. Antyufeev +1 more
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A New Type of X-Ray Scattering
Nature, 1950IN my previous communication in Nature1 on this subject, I mentioned only a few insulators in which the low-energy satellite in valence-band spectra could be explained as the modification of the parent beam due to partial absorption in the lattice.
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1995
Small-Angle Scattering (SAS) or scattering at low angles can give information on size, shape, quantity and arrangement of “scattering objets” or “particles” whose “characteristic length” is large by comparison to the interatomic spacing.
A. Naudon, P. Goudeau, V. Vezin
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Small-Angle Scattering (SAS) or scattering at low angles can give information on size, shape, quantity and arrangement of “scattering objets” or “particles” whose “characteristic length” is large by comparison to the interatomic spacing.
A. Naudon, P. Goudeau, V. Vezin
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Nonresonant Inelastic X-ray Scattering and X-ray Raman Scattering
2016In analogy to the connections between Raman scattering and absorption in the optical regime, X-ray Raman scattering (XRS) is an alternative to X-ray absorption spectroscopy, particularly for sub-keV excitations. XRS is the nonresonant inelastic X-ray scattering (NIXS, or NRIXS) from core or semi-core electrons and has a similar energy-dependence as X ...
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AIP Conference Proceedings, 1990
New developments in x‐ray scattering are resulting from the use of synchrotron radiation sources, allowing study of anomalous scattering regimes with high energy resolution and polarized light. S matrix calculations of elastic scattering are in good agreement away from edges, while dispersion relations can be used to predict edge region scattering if a
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New developments in x‐ray scattering are resulting from the use of synchrotron radiation sources, allowing study of anomalous scattering regimes with high energy resolution and polarized light. S matrix calculations of elastic scattering are in good agreement away from edges, while dispersion relations can be used to predict edge region scattering if a
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Magnetic x-ray Compton scattering
Physical Review B, 1996A theory of magnetic Compton scattering is formulated. The cross section is found to be insensitive to orbital effects, in agreement with recent experiments on transition-metal and rare-earth ferromagnets. When the transferred energy is sufficiently small to generate substantial corrections to the impulse approximation, the sensitivity to orbital ...
Carra P +3 more
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1979
An X-ray beam that passes through an absorber is attenuated. The degree of attenuation depends upon both photoabsorption and scattering processes. Scattering occurs when an X-ray photon interacts with one of the electrons of the absorbing element. If this collision is elastic (no energy is lost in the collision process), the scattering is said to be ...
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An X-ray beam that passes through an absorber is attenuated. The degree of attenuation depends upon both photoabsorption and scattering processes. Scattering occurs when an X-ray photon interacts with one of the electrons of the absorbing element. If this collision is elastic (no energy is lost in the collision process), the scattering is said to be ...
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Nature, 1952
THE large lattice spacings occurring in such organic matter as fibres or crystalline viruses give rise to X-ray diffraction patterns with Bragg angles of minutes of arc rather than of degrees. The neighbourhood of the direct beam is, however, for a variety of reasons, easily obscured by scattered radiation and insufficient collimation, so that special ...
W, EHRENBERG, A, FRANKS
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THE large lattice spacings occurring in such organic matter as fibres or crystalline viruses give rise to X-ray diffraction patterns with Bragg angles of minutes of arc rather than of degrees. The neighbourhood of the direct beam is, however, for a variety of reasons, easily obscured by scattered radiation and insufficient collimation, so that special ...
W, EHRENBERG, A, FRANKS
openaire +2 more sources