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Folded array CT baggage scanner

  • US 7,039,154 B1
  • Filed: 08/04/2005
  • Issued: 05/02/2006
  • Est. Priority Date: 10/02/2003
  • Status: Expired due to Term
First Claim
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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.

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