Results 181 to 190 of about 11,860 (227)

Small-Angle Neutron Scattering

1997
Small-angle neutron scattering (SANS) experiments from networks were initiated by Benoit and collaborators in the mid-1970s. Currently, SANS is an important major technique used in studying network structure and behavior. Its importance lies in its being a direct method with which observations may be made at the molecular-length scale without the need ...
Burak Erman, James E. Mark
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Multiple Small-Angle Neutron Scattering

Journal of Neutron Research, 1999
Over 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 (> ...
Gabrielle Long, Susan Krueger, Andrew Allen   +2 more
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Small Angle Scattering of Neutrons

Physical Review, 1951
The 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 fast neutrons

Nuclear Instruments and Methods, 1971
Abstract The reasons for interest in small angle scattering of fast neutrons are outlined. Apparatus developed for investigating small angle scattering of 3.5 MeV neutrons emitted in the 2H(d,n)3He reaction using a 1 MeV accelerator is described and its performance assessed.
K Mosood Ali, R.B. Galloway, D.G. Vass
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Small Angle Scattering of Thermal Neutrons

Physical Review, 1950
Experiments 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 ...
H. H. A. Krueger, D. Meneghetti, G. R. Ringo, L. Winsberg   +3 more
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Small-angle neutron scattering

2000
Abstract 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 ...
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Small angle neutron scattering in a superparamagnet

Journal of Magnetism and Magnetic Materials, 1992
Abstract 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.
I. Mirebeau, C. Bellouard, M. Hennion, J.L. Dormann, C. Djega-Mariadassou, M. Tessier   +5 more
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Investigations on small angle scattering with neutrons

Bulletin de la Société française de Minéralogie et de Cristallographie, 1967
L'application des neutrons très lents à la diffraction aux petits angles des réseaux déformés de longue période ou de grandes dimensions, offre des avantages par rapport à la diffraction des rayons X, proprement dite : — l'élimination de la double diffraction de Bragg.
Springer, T., Schmatz, W.
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Small angle neutron scattering in Ni3Al

Journal of Applied Physics, 1982
The 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, I. Cole, G. G. Lonzarich, G. L. Squires   +3 more
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Neutron-proton scattering at small angles

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1955
Abstract Neutron-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.
J. J. Thresher, R. G. P. Voss, Robert Wilson   +2 more
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