Patent ID: 8767912

Claim:
A system for the inspection and imaging of insulated pipes using backscattered gamma radiation and X-ray fluorescence, comprising: a frame having a lower base portion and an upper portion, the upper portion having a pair of spaced apart, coaxial rings adapted for coaxial mounting about an insulated pipe, each of the rings having a rotating support rotatably mounted therein; means for controllably driving rotation of the rotating supports with respect to the frame; a plurality of horizontal supports secured to and extending between rotating supports, each of the horizontal supports extending along a direction parallel to an axis of the insulated pipe; a plurality of inspection modules slidably mounted on the plurality of horizontal supports, each of the inspection modules having at least one radiation source, an X-ray fluorescence detector and a gamma radiation detector; a multi-channel analyzer in communication with the gamma radiation detector, whereby a spectral window of interest may be selected for producing an image; and means for controllably translating each of the inspection modules linearly with respect to the corresponding one of the horizontal supports, whereby each said inspection module measures a surface thickness of a pipe body of the insulated pipe to determine corrosion level therein.