Results 291 to 300 of about 501,442 (336)

Biological Small Angle Scattering

2018
The technique of small angle solution scattering has been revolutionized in the last two decades. Exponential increases in computing power, parallel algorithm development, and the development of synchrotron, free-electron X-ray sources, and neutron sources, have combined to allow new classes of studies for biological specimens.
Thomas D. Grant, Eaton E. Lattman, Edward H. Snell   +2 more
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Small-Angle X-Ray Scattering [PDF]

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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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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Kinematics of small angle scattering

The Journal of Chemical Physics, 1974
In beam-recoil measurements of the scattering of molecules by electrons or photons, deflected molecules are observed at very small angles, comparable to the angular divergences of the observed and crossing beams. A kinematic analysis is presented that explicitly includes the effects of these divergences.
M. G. Fickes, R. C. Stern
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Performance and characteristics of the BILBY time-of-flight small-angle neutron scattering instrument

Journal of Applied Crystallography, 2019
BILBY is a recently constructed and commissioned time-of-flight small-angle neutron scattering instrument, operated by the Australian Centre for Neutron Scattering at the Australian Nuclear Science and Technology Organisation (ANSTO).
Anna Sokolova, A. Whitten, L. de Campo, J. Christoforidis, A. Eltobaji, J. Barnes, F. Darmann, A. Berry   +7 more
semanticscholar   +1 more source

Small angle scattering of electrons

Physics Letters A, 1973
Abstract The small angle scattering of low energy electrons has been studied. It has been shown that the cross-sections obtained using the Born's first approximation, corrected for screening effects should be used to study the small angle scattering of low energy electrons.
R. N. Singh, R. R. Rausaria, R.P. Singhal   +2 more
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Small-angle scattering of polyelectrolyte solutions

Macromolecules, 1984
Calcul de l'intensite de diffusion aux petits angles; point maximum g m de l'intensite de diffusion; comparaison avec les resultats ...
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Instrumentation for Small-Angle Scattering [PDF]

, 1995
A review of small-angle X-ray (SAXS) and small-angle neutron (SANS) scattering instruments is given. The difference between long-slit and pinhole collimation and the influence of a broad band-pass monochromator are discussed with respect to the smearing of the measured scattering curves. The various components of SAXS setups are described: conventional
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Small angle scattering and asphaltenes [PDF]

Journal of Physics: Condensed Matter, 2006
Petroleum is a mixture of organic material consisting of a series of molecules with increasing molecular weight but with decreasing carbon to hydrogen ratios. This monotonic trend leads to distinctive properties of each class, cut by solvents. Asphaltenes are a class soluble in toluene but not in heptane.
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Small-angle scattering and diffraction

Synchrotron Radiation News, 2000
(2000). Small-angle scattering and diffraction. Synchrotron Radiation News: Vol. 13, No. 5, pp. 10-16.
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