초록 ▼

An inspection system for automatically detecting the presence of a concealed item within an enclosure. A beam of penetrating radiation is incident on the enclosure and detected by a detector disposed on the side of the enclosure opposite to the incident beam. By scanning the relative orientation of

An inspection system for automatically detecting the presence of a concealed item within an enclosure. A beam of penetrating radiation is incident on the enclosure and detected by a detector disposed on the side of the enclosure opposite to the incident beam. By scanning the relative orientation of the enclosure with respect to the beam, the penetrating radiation transmitted through the enclosure is mapped, compared with known properties of the enclosure, and the presence of material concealed within the enclosure is determined.

대표청구항 ▼

[ I claim:] [1.] An inspection system for inspecting an enclosure having a spatial frame of reference, comprising:(a) a source of penetrating radiation;(b) a collimator for forming the penetrating radiation into a beam having an orientation with respect to the enclosure;(c) a scanner arrangement for

[ I claim:] [1.] An inspection system for inspecting an enclosure having a spatial frame of reference, comprising:(a) a source of penetrating radiation;(b) a collimator for forming the penetrating radiation into a beam having an orientation with respect to the enclosure;(c) a scanner arrangement for varying the orientation of the beam with respect to the enclosure such that a component of the beam traverses the enclosure;(d) a detector for producing flux position distribution information, disposed so as to intercept the component of beam traversing the enclosure;(e) a signal-processing means for transforming the position distribution information to an absorption distribution matrix referred to the spatial frame of reference of the enclosure; and(f) a controller for determining the presence of concealed material within the enclosure based at least on the absorption distribution matrix and a specified detection criterion.