Results 161 to 170 of about 11,863 (201)

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

Small angle neutron scattering by opals

Physics and Chemistry of Minerals, 1997
Micro- 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.
H. Graetsch, K. Ibel
openaire   +1 more source

An introduction to small-angle neutron scattering

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 on Polymers

Journal of Neutron Research, 1999
Many polymer molecules can be isotopically labelled by substituting deuterium for hydrogen on the polymer chain. The labelling method minimally perturbs the thermodynamics of polymeric systems while providing superb contrast for neutron experiments. In this article, some of the uses of small angle neutron scattering and neutron reflectivity for the ...
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Small-angle neutron scattering and neutron reflectometry

1993
Diffraction methods, interpreted loosely, could be applied to the techniques of wide-angle X-ray scattering, small-angle X-ray scattering, electron diffraction, small-angle neutron scattering, small-angle light scattering and reflectometry. Each of the above techniques is defined by the size range explored and the property that causes the scattering ...
openaire   +1 more source

Small Angle Neutron Scattering

Annual Review of Biophysics and Bioengineering, 1983
G, Zaccaï, B, Jacrot
openaire   +2 more sources

Small-angle neutron-scattering facility

Physics Today, 1978
A user-oriented facility for small-angle neutron scattering is to be built at Oak Ridge National Laboratory at a cost of $1.4 million spread over three years. Funds come from NSF under an interagency agreement with the Department of Energy.
openaire   +1 more source

Small Angle Neutron Scattering Complementing Neutron Radiography

1983
In neutron radiography inhomogeneities of sizes down to a few micrometers are detectable by an imaging technique. In small angle neutron scattering (SANS) experiments inhomogeneities in the A range up to 1000 A diameter are observed by neutron scattering.
openaire   +1 more source