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Small Angle Neutron Scattering
2016Recent progress on materials for hydrogen storage have pointed out that kinetics and thermodynamics can be modified by nano-confinement of hydrides in porous scaffolds. The investigation of the structural features of these particular systems is challenging with conventional methods, for instance due to the lack of peaks in the diffraction pattern ...
Sabrina Sartori, Kenneth D. Knudsen
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An introduction to small-angle neutron scattering [PDF]
Journal of Applied Crystallography, 1988 Neutron and X-ray small-angle scattering provide, along with electron microscopy and diffraction, the principal techniques for the microscopic characterization of materials. Neutron, X-ray and electron beams each have quite different properties. In fact, each has unique advantages.
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Small angle neutron scattering by opals
Physics and Chemistry of Minerals, 1997Micro- and non-crystalline opals, chalcedony and flint show diffuse small angle neutron scattering (SANS). Precious opals give rise to two additional intensity maxima at very small scattering angles which are due to Bragg reflections from the closest packed non-crystalline silica spheres.
K. Ibel, Heribert A. Graetsch
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Small Angle Scattering of Neutrons
Physical Review, 1951The differential and total scattering cross sections have been calculated for slow neutrons impinging on crystalline spheres whose radii are very much greater than the neutron wavelength. The results for the differential cross section show that when the difference, $\ensuremath{\rho}$, between the neutron phase shift in traversing the particle diameter
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Small Angle Scattering of Thermal Neutrons
Physical Review, 1950Experiments on the small angle scattering of thermal neutrons by powders are compared with theory. The available theories, which closely resemble those for small angle scattering of x-rays, are found to give a satisfactory account of the results. In general, the neutrons are scattered into a Gaussian distribution in angle whose width is directly ...
D. Meneghetti +3 more
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Small angle neutron scattering in a superparamagnet
Journal of Magnetism and Magnetic Materials, 1992Abstract Small angle neutron scattering (SANS) measurements and neutron depolarisation have been performed in superparamagnetic Fe particles. The particles size and interparticle distance are close to the values obtained from electron microscopy and magnetization.
C. Djega-Mariadassou +5 more
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Neutron-proton scattering at small angles
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1955Neutron-proton scattering has been measured from 6 to 61.5° c.m. for neutrons of effective energy 105 ± 3 and 137 + 5 MeV using a liquid hydrogen scatterer and a large neutron counter. The results confirm previous measurements and show a near symmetry around 90° at 105 MeV, and a fairly definite asymmetry at 137 MeV.
Robert Wilson +2 more
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Multiple Small-Angle Neutron Scattering
Journal of Neutron Research, 1999Over the past decade, a multiple small-angle neutron scattering (MSANS) formalism has been developed to enable researchers to derive microstructural parameters from multiply-scattered small-angle neutron data. The MSANS formalism is particularly useful in ceramic science and materials research because it is applicable to samples that are thicker (>
Susan Krueger +2 more
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Small angle neutron scattering in Ni3Al
Journal of Applied Physics, 1982The temperature dependence of small angle neutron scattering in weakly ferromagnetic Ni3Al has been investigated by means of multi-detector small-angle spectrometers at A.E.R.E. Harwell and I.L.L. Grenoble. Measurements are reported in three stoichiometric samples with residual resistivity ratios [RRR=ρ(293 K)/ρ(4.2 K)] of up to 40 and in a Ni rich ...
N. R. Bernhoeft +3 more
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Small-angle neutron scattering
2000Abstract Small-angle scattering (SAS) of X-rays or neutrons arises from scattering density fluctuations of the order 10—100 A. In biological studies, samples are usually solutions of macromolecules in this size range. Depending on the experimental conditions such as macromolecular concentration, for example, SAS provides information on ...
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