Journal ArticleDOI
Small-Angle X-Ray Scattering
W. Ehrenberg,A. Franks +1 more
TLDR
The neighbourhood of the direct beam is, for a variety of reasons, easily obscured by scattered radiation and insufficient collimation, so that special measures such as very long film-specimen distances or focusing crystal monochromators have been used for obtaining satisfactory photographs.Abstract:
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 measures such as very long film-specimen distances1 or focusing crystal monochromators2 have been used for obtaining satisfactory photographs. In particular, Furnas3 has recently made an important contribution to the latter method.read more
Citations
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Journal ArticleDOI
Small‐Angle Scattering of X‐Rays
Journal ArticleDOI
Theory of phase-ordering kinetics
TL;DR: The theory of phase-ordering dynamics that is the growth of order through domain coarsening when a system is quenched from the homogeneous phase into a broken-symmetry phase, with the emphasis on recent developments, is reviewed in this paper.
Journal ArticleDOI
Natively unfolded proteins: a point where biology waits for physics.
TL;DR: Results of this analysis showed that intrinsically unstructured proteins do not possess uniform structural properties, as expected for members of a single thermodynamic entity, and the Protein Quartet model, with function arising from four specific conformations (ordered forms, molten globule, premolten globules, and random coils) is discussed.
Journal ArticleDOI
New developments in the ATSAS program package for small-angle scattering data analysis
Maxim V. Petoukhov,Daniel Franke,Alexander V. Shkumatov,Giancarlo Tria,Alexey Kikhney,Michal J. Gajda,Christian Gorba,Haydyn D. T. Mertens,Petr V. Konarev,Dmitri I. Svergun +9 more
TL;DR: The paper presents new developments and amendments to the ATSAS package (version 2.4) for processing and analysis of isotropic small-angle scattering data.
References
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Journal ArticleDOI
X-Ray Diffraction Studies on Protein Fibers. I. The Large Fiber-Axis Period of Collagen
Journal ArticleDOI
An Electrostatic Focusing System and its Application to a Fine Focus X-Ray Tube
W Ehrenberg,W E Spear +1 more
TL;DR: In this paper, an electrostatic focusing system by which electrons emitted from the tip of a hairpin filament are reunited at a distance of 2 to 3 cm is described. But no intermediate potentials are required.
Journal ArticleDOI
X-ray optics; the production of converging beams by total reflection.
TL;DR: A method of computing the geometrical optics of surfaces of bent beams is given and it is shown that under certain conditions lateral aberrations for practical apertures are of the order of one micron or less.
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