Patent ID: 7039154
Filing Date: 2006-05-02
Classification: A61B,G01V

Abstract:
1. A CT scanner for scanning of an object comprising: a tunnel; a conveyor for moving the object through the tunnel; a gantry rotatable around the tunnel; an x-ray source on the gantry for providing an x-ray beam perpendicular to the tunnel; a first plurality of detectors on the gantry positioned a first distance from the x-ray source; a second plurality of detectors on the gantry positioned a second distance from the x-ray source, wherein the second distance is less than the first distance; a third plurality of detectors on the gantry positioned the second distance from the x-ray source, wherein: one of the detectors in the first plurality of detectors is positioned within the x-ray beam adjacent to one of the detectors in the second plurality of detectors; and another one of the detectors in the first plurality of detectors is positioned within the x-ray beam adjacent to one of the detectors in the third plurality of detectors; the x-ray beam intersects an entire cross section of the tunnel; and the first, second, and third pluralities of detectors are positioned on the gantry so that the entire x-ray beam intersects at least one detector.