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Showing 1 to 20 of 138 for “"neutron diffraction"”.
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Grazing angle neutron diffraction
… and practical implementation of grazing-angle neutron diffraction as a new method of non-destructive surface and interface analysis. Diffraction in the grazing-angle geometry with x rays and neutrons possesses two unique advantages over specifically surface-sensitive methods for structure …
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A neutron diffraction spectrometer
A single crystal neutron spectrometer using a copper crystal has been designed and constructed for the purpose of studying the low energy (<1 ev) neutron spectrum from the V.P.I. reactor. The basic theory necessary for the design, the details of the spectrometer, calibration data and method of …
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Strain measurement using neutron diffraction
… of strain measurement technique using neutron diffraction. A dedicated neutron strain scanner - ENGIN, funded by Ee. has been developed at ISIS. It has two radial collimators, allowing for the first time, measurements taken simultaneously at two orthogonal directions; uses Pawley …
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Experimental evaluation of polychromatic neutron diffraction
Neutron diffraction is a technique that allows scientists to measure the arrangement and motions of atoms in a crystalline lattice by observing neutrons scattering at angles that are characteristic of the interatomic distances of the crystal. This is useful for studying the response of crystals to …
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Analysis and simulation of neutron diffraction patterns
The analysis of neutron diffraction powder patterns and the simulation of single crystal oscillation patterns is described. The main factors governing the position and intensity of the coherent diffraction peaks and the factors contributing to the background level of scattered radiation in the …
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Investigation by neutron diffraction utilizing white neutron radiation
"The most probable reactor core neutron velocity was determined by analysis of data obtained from single crystals of copper and lithium fluoride. Derivation of the relationship between the maximum in experimental count rate and the most probable velocity, an error analysis of the method, and the …
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Studies on neutron diffraction and X-ray radiography for material inspection
… of the bio and structural materials, X-ray and neutron are widely used because of their distinctive usefulness in investigating different structures. X-ray radiography and neutron diffraction are two widely known non-destructive techniques for material inspection. Here we demonstrate the design …
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The structure of molecular liquids: neutron diffraction and molecular dynamics simulations
Neutron diffraction (ND) measurements on liquid methanol (CD<sub>3</sub>OD, CD<sub>3</sub>O(H/D), CD<sub>3</sub>OH) under ambient conditions were performed to obtain the distinct (intra- + inter-molecular), G<sup>dist </sup>(<i>r</i>) and inter-molecular, G<sup>inter</sup>(<i>r</i>) radial …
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A neutron diffraction study of the magnetization in dilute Cu (Fe) alloys.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 1974
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An investigation of hydrogen bonded molecular systems using X-ray and neutron diffraction
… with both single crystal X-ray and neutron diffraction, crystallisation of a large number of molecular complexes of the chloranilic acid molecule, and examining the bifurcated hydrogen bond motif found in many of the chloranilic acid co-crystals discovered. The neutron single crystal …
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A neutron diffraction study of the field-induced diamagnetism in the semimetal bismuth.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 1979
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Applying Novel Material Characterization Techniques using Ultrafast Laser Excitation and Neutron Diffraction in Radiation Detector Crystals
… precise interactions of low-energy photon and neutron beams.
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An investigation into the growth and characterisation of thin film radioluminescent phosphors for neutron diffraction analysis
… the feasibility of enhancing a solid-state neutron scintillation detector system for increased detection resolution and detection rate. Undertaken in collaboration with the neutron facility ISIS at the Rutherford Appleton Laboratory, it was to examine whether an improved radioluminescent …
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Mechanical properties of superelastic and shape-memory NiTi and NiTi-TiC composites investigated by neutron diffraction
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1999.
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A study of deformation in metal matrix composites at room- and elevated temperature using neutron diffraction
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1997.
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Scientific visualization of stress tensor information with applications to stress determination by X-ray and neutron diffraction
… the final tensorial quantity obtained from the diffraction measurements, but the visual methods are developed from, and integrated into current residual stress analysis practices by relating the newly developed visual techniques to the conventional techniques, highlighting its advantages. This …
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Neutron diffraction and quasielastic neutron scattering studies of films of N-alkanes and a branched alkane adsorbed on graphite
… THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Neutron diffraction and quasielastic neutron scattering have been used to study the structure and dynamics of films of n-alkanes and of a branched alkane adsorbed on graphite. The structures of the intermediate-length alkane n-tetracosane and of the …
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Studies of structure and dynamics of biological macro-molecular assemblies by low angle neutron diffraction and inelastic X-ray scattering
… phase diagram and analyze the small angle neutron scattering (SANS) intensity distribution of colloidal systems. By analyzing the dynamic structure factor measured with IXS, the phonon dispersion relations of 40 wt% calf-thymus Na-DNA with different counterion atmosphere are constructed. It …
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