Laterally-offset detectors for long-range x-ray backscatter imaging

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United States of America Patent

PATENT NO 9535019
SERIAL NO

14499572

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Abstract

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A method for imaging a target with an x-ray scatter apparatus. Air scatter from air intervening between the x-ray scatter apparatus and a target overwhelms x-ray scatter from the target in that x-ray scatter from a position on the target is no more than 10% of the x-ray scatter due to intervening air scatter that reaches at least one point in the detector plane of the x-ray scatter apparatus. The target is illuminated with a beam of x-rays scanned across the target, and x-rays scattered by the target are detected using a detector with a centroid displaced with respect to the beam axis by at least five feet. The detector signal is then processed to generate an image of the target. The beam of x-rays may be unshielded, and/or the detector may be uncollimated.

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Patent Owner(s)

Patent OwnerAddress
AMERICAN SCIENCE AND ENGINEERING INC829 MIDDLESEX TURNPIKE BILLERICA MA 01821

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rothschild, Peter J Newton, US 55 1305

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