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A photograph of the alignment jig is shown in (a). The jig fits precisely into the gantry allowing the optics to be radially aligned by maximizing the light signal through a pinhole, as shown in (b). Mechanical alignment is depicted in (c) and is performed to ensure the stage translates through the center of the gantry, allowing the source∕detector information to be placed virtually, given the microCT contour information.
