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X-rays for early Alzheimer's disease detection
Date:6/16/2009

y Directed Research and Development program. The National Synchrotron Light Source is funded by the Office of Basic Energy Sciences within the DOE Office of Science.

How it works

To make a diffraction-enhanced image, x-rays from the synchrotron are first tuned to one wavelength before being beamed at an anatomical structure or slide. As the monochromatic (single wavelength) beam passes through the tissue, the x-rays scatter and refract, or bend, at different angles depending on the characteristics of the tissue. The subtle scattering and refraction are detected by what is called an analyzer crystal, which diffracts, or changes the intensity, of the x-rays by different amounts according to their scattering angles.

The diffracted beam is passed onto a radiographic plate or digital recorder, which documents the differences in intensity to show the interior structural details.


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Contact: Kendra Snyder
ksnyder@bnl.gov
631-344-8191
DOE/Brookhaven National Laboratory
Source:Eurekalert

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