Patent ID: 7623626
Filing Date: 2009-11-24
Classification: B64F,G01N

Abstract:
1. A method of interrogating a surface of a structure using an x-ray backscatter system to generate an image of an object obscured behind the surface, the x-ray backscatter system including a mobile base portion, at least a first arm secured to the base at an articulation point, at least one x-ray source, and at least one x-ray detector configured to collect x-rays backscattered from the object, the method comprising: a) advancing the system through the structure; b) articulating the arm and the x-ray detector about the articulation point, the x-ray detector being positioned on the arm at a location spaced from the articulation point; c) linearly extending and contracting the arm with respect to the mobile base portion; d) generating x-rays from the x-ray source and directing the x-rays toward the surface; and e) detecting a portion of the x-rays at the x-ray detector after the portion of the x-rays have been backscattered from the object obscured behind the surface.