System and method for adaptive X-ray cargo inspection
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United States of America Patent
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Oct 29, 2019
Grant Date -
Nov 26, 2015
app pub date -
May 23, 2015
filing date -
May 23, 2014
priority date (Note) -
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Abstract
An X-ray based inspection systems providing radiographic imaging for cargo inspection and material discrimination with adaptive control dependent upon characteristics of the cargo under inspection. A packet of X-ray pulses with controllable packet duration is produced that allows multi-energy material discrimination in a single scan line and real-time adjustment of packet duration to adapt to cargo attenuation. In addition, adaptive dynamic adjustment of the operational characteristic of the detector channels increases the effective dynamic range and as a result increases the penetration and range of thicknesses where material discrimination is possible. The material discrimination technique is applied within a single packet of short pulses of several hundred nanoseconds. Feedback from the detection system is used to control the packet duration of each packet of X-ray pulses in order to adapt scan parameters to the object that is being imaged.
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