System and method for XRD-based threat detection
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United States of America Patent
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Apr 12, 2011
Grant Date -
Aug 27, 2009
app pub date -
Feb 23, 2009
filing date -
Feb 22, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
System and method for XRD-based threat detection. An object is scanned with a first threat detection system. One or more alarm objects are identified. Data about the one or more alarm objects is passed from the first threat detection system to a second threat detection system and is used to move and/or to rotate the object in a predetermined ray path that decreases attenuation of scattered x-ray radiation. Also disclosed is a secondary collimator for XRD-based false alarm resolution in computed tomography {“CT”) threat detection systems. The secondary collimator comprises one or more slit apertures configured to provide a multi-angle capability that extends a range of momenta for which XRD intensities are measured for a predetermined range of photon intensities.
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