An x-ray inspection is provided featuring a single x-ray source and a
planar array of linear sensors aligned in parallel. An article to be
inspected is moved between the x-ray source and the linear sensors in a
series of passes parallel to the array of linear sensors and
substantially perpendicular to the long axes of the linear sensors.
Alternately, the x-ray source and the sensors are moved as a unit
relative to a stationary article. As a result, a transmission image of
the article is captured for each of the linear sensors. These
transmission images are then combined mathematically to generate a layer
image for each separate conceptual layer of the article. In some
embodiments, these layer images may then be interpreted in order to
determine the quality of the article.