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Two-Dimensional Spectral Detector for Baggage Inspection X-Ray System

The paper deals with two-dimensional spectral detector for baggage inspection X-ray devices. This detector is based on construction of analytical models for internal structure of object under control and their spectrum calculation. The methods of projective geometry and Bouguer-Lambert law are applied to obtain the analytical models for shadows of the threedimensional objects. Spectral detector are designed according to Neyman-Pearson criterion. Analysis shows that proposed spectral detector has good operating characteristics even at low signal-to-noise ratios.