CT Scanner Operation

As depicted, the luggage moves from left to right after being placed on the tilted entrance conveyor, which then transitions to a horizontal motion for scanning. The larger structure in the center is the CT scanner section. Next comes the exit conveyor that transitions downward for ease in retrieving bags. Conveyors in the entrance tunnel, in the scanner section, and in the exit tunnel all run at the same speed. The two conveyor tunnels at either end each contain several sets of leaded 

Four of the enclosure s wooden walls are approximately aligned with the black frame. The explosive material causing the alarm, however, is not readily apparent. 

The abihty of X-ray CT scanners to capture information from the third dimension and to measure material properties directly gives them the abihty to markedly surpass conventional 2D X-ray systems in automatically discovering contraband and in making it visible to human operators. 

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