High-resolution neutron diffraction monochromators
نویسندگان
چکیده
منابع مشابه
High-resolution optical diffraction microscopy.
In an optical diffraction microscopy experiment, one measures the phase and amplitude of the field diffracted by the sample and uses an inversion algorithm to reconstruct its map of permittivity. We show that with an iterative procedure accounting for multiple scattering, it is possible to visualize details smaller than lambda/4 with relatively few illumination and observation angles. The roles...
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Crystallization and preliminary neutron-diffraction measurements of wild-type variant Val58-->Ile of the Escherichia coli trp repressor are reported. A vapor-diffusion chamber suitable for initial protein-solution Volumes in the range 0.2-0.5 ml was used to grow cube-shaped crystals with edge dimensions in the range 0.8-1.4 mm. Neutron Laue measurements to a nominal resolution of 2.1 A were rec...
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The peak profile shape analysis has been preferentially used in evaluation of X-ray and synchrotron powder diffraction pattern. However, neutron diffraction facilities of new generation frequently offer the instrumental resolution high enough to study efficiently the effects of broadening of neutron diffraction profiles. The present paper describes the procedure for a detailed evaluation of Bra...
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Highly accurate and precise crystal structures of methyl R-D-arabinofuranoside, methyl â-D-ribofuranoside, methyl R-D-lyxofuranoside, and methyl R-D-xylofuranoside have been determined at 100 K by X-ray crystallography. The structures of methyl R-D-arabinofuranoside and methyl â-D-ribofuranoside have also been determined at 15 K by neutron diffraction. Equilibrium (re) geometries of the same co...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 2005
ISSN: 0108-7673
DOI: 10.1107/s0108767305093943