Patent ID: 7417440
Filing Date: 2008-08-26
Classification: G01F,G01N,G01R,G01V

Abstract:
1. A security scanning system, comprising: a housing; an inspection region located within said housing; a plurality of microwave arrays comprised of more than one microwave transmitters and more than one microwave receivers, wherein said array is in physical communication with said housing, wherein the microwave transmitters and microwave receivers are separated by said inspection region, wherein each of said microwave transmitters transmits microwave radiation to more than one microwave receivers; a data acquisition and imaging system that acquires data from said microwave receivers and generates an image of a concealed object within a container; and radiation shielding in physical communication with the housing, wherein said microwave transmitters emit controllably directed microwave radiation toward said container and wherein said container and its contents absorb radiation in a manner dependent upon their metal content, wherein said data comprises microwave radiation absorption data and wherein said data acquisition and imaging system outputs a measurement of metal content based upon said data.