Patent ID: 7356116

Claim:
A system, comprising: a scanning tunnel having an entrance and an exit, configured to allow passage of a large commercial vehicle through the scanning tunnel; a plurality of scanning entrance doors, each having an open position and a closed position, at least one of the plurality of scanning entrance doors interior to the scanning tunnel; a plurality of scanning exit doors, each having an open position and a closed position, at least one of the plurality of scanning exit doors interior to the scanning tunnel; a scanner, adapted to scan the contents of a container inside the scanning tunnel with X-rays when at least one of the plurality of scanning entrance doors is in the closed position and at least one of the plurality of scanning exit doors is in the closed position; a carrier, adapted to carry the container through the tunnel, and a conveyor system, adapted to convey the carrier through the tunnel; a first longitudinal track extending through the scanning tunnel at a first level; a second longitudinal track exterior to the scanning tunnel at a second level, different from the first level; a first transverse straight track between the second longitudinal track and the exit at a third level, different from the first level and the second level; and a second transverse straight track between the second longitudinal track and the entrance at a fourth level, different from the first level, the second level, and the third level, wherein the carrier is configured to carry containers that are large commercial vehicles.