Method and apparatus for detecting defects using digital...

X-ray or gamma ray systems or devices – Specific application – Absorption

Reexamination Certificate

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C378S057000, C250S341800, C250S358100, C382S141000, C382S149000, C382S152000

Reexamination Certificate

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06873680

ABSTRACT:
A digital radiography apparatus (10) and process for providing images of an object, for example, an exhaust transition duct (12) comprising a core material and an overlying thermal barrier layer, to detect surface and interior defects within the duct (12). Incident energy is provided by an energy source (30), transmitted through the object (12), and sensed by a sensor (32). An image of the object (12) is formed by processing the signal from the sensor (32) in a signal processor (34) and displaying the image on a display (36) for determining defects in the object (12).

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