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backscattering |
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backscattering [′bak¦skad·ə·riŋ] Also known as back radiation; backward scattering. (communications) Propagation of extraneous signals by F- or E-region reflection in addition to the desired ionospheric scatter mode; the undesired signal enters the antenna through the back lobes. (electromagnetism) Radar echoes from a target. Undesired radiation of energy to the rear by a directional antenna. (physics) The deflection of radiation or nuclear particles by scattering processes through angles greater than 90° with respect to the original direction of travel. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The traditional prediction of average backscatter intensities in compounds using elemental mass fractions is improperly grounded in mass and thus has no physical basis. A breakthrough in X-ray detection technology, AS&E's Z Backscatter Van is a low-cost, highly mobile screening system built into a commercially available delivery van. The system's proprietary Z Backscatter technology produces photo-like images from three sides of the cargo -- left, right, and top-down -- to provide the DoD with maximum inspection capability to secure this vital checkpoint. |
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