Results 151 to 160 of about 11,863 (201)

Small-angle neutron scattering

2006
The use of small-angle neutron scattering (SANS) for the study of biological macromolecules is described. Topics covered in this chapter include: the theoretical basis of SANS; contrast variation; and the measurement of distances between chemically specified points in a macromolecule or macromolecular complex. Practical considerations are addressed and
D. M. Engelman, P. B. Moore
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Foams As Viewed by Small-Angle Neutron Scattering

Langmuir, 2003
We report on small-angle neutron scattering measurements obtained in situ on three-dimensional aqueous foams stabilized by sodium dodecyl sulfate. Isotropic as well as anisotropic scattering data have been collected for two kinds of foams:  wet foams in the steady-state regime of constant gas bubbling and dry foams under free draining conditions ...
Axelos M.A.V., Monique, Boué, François
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Small-angle neutron scattering

2009
Abstract The theory and practice of small-angle X-ray scattering (SAXS) dates back to the 1930s and is well described in the classic book of Guinier and Fournet (1955). Small-angle neutron scattering (SANS) came much later. It was not until the early 1970s, when position-sensitive detectors on cold neutron guides became available, that ...
B T M Willis, C J Carlile
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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 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

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 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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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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