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X-ray diffraction

   Also found in: Dictionary/thesaurus, Medical, Acronyms, Wikipedia, Hutchinson 0.06 sec.

X-ray diffraction

Phenomenon in which the atoms of a crystal, by virtue of their uniform spacing, cause an interference pattern of the waves in an incident beam of X-rays. The crystal's atomic planes act on the X-rays in the same way a uniformly ruled grating acts on a beam of light (see polarization). The interference pattern is specific to each substance and gives information on the structure of the atoms or molecules in the crystal. See also William Henry Bragg.


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All of this became possible only because of the preceding discoveries, from the discovery of the planet Ceres, to Gauss' discovery of least squares, to the discovery of x-ray diffraction and x-ray crystallography, all of which had been done with no thought of the possible usefulness in improving public health.
X-ray diffraction (XRD) Residual Stress Management Systems from Proto Manufacturing Ltd.
The additions bring to about 6,000 the number of terms defined, ranging from amino acids, bacteria, and the cell cycle to X-ray diffraction, Y chromosomes, and zygotes.
 
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