X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1996-04-03
1997-06-24
Wong, Don
X-ray or gamma ray systems or devices
Specific application
Absorption
378 86, 378 87, G01N 2304
Patent
active
056423942
ABSTRACT:
An edge enhancement X-ray imaging system inspects an object for detecting an illegal component. The system illuminates the object with penetrating radiation which is sidescattered from the object and captured by a pair of radiant detectors. The detectors are symmetrically positioned opposite each other, being adjacent the two sides of the object. Each detector has a detecting surface substantially parallel to the beam for converting sidescattered radiation into a pair of electrical signals which define a location of an edge of the illegal component. In response to the electrical signals, a video display produces a visual image of the edge. In another embodiment of the invention, the system further comprises a pair of backscatter detectors which convert the backscattered radiation into a second pair of electrical signals producing a second visual image on the video display. As a result of superimposing the second image onto the first image associated with the sidescatter detectors, the detection of components of the object is greatly improved.
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American Science and Engineering, Inc.
Wong Don
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