Patent ID: 8917927

Claim:
A portable scanning detection system, comprising: a floor assembly having a cantilever drive assembly for rotating the floor assembly, the floor assembly partitioned into multiple parts for reassembly; at least one x-ray tube oriented towards selected sides of a test subject, wherein the at least one x-ray tube emits backscatter pencil beam x-rays formed with vertical slit collimator followed by a rotating disc with radial slits for vertical raster scanning; a detector assembly oriented on the circumference of the floor assembly, the detector assembly partitioned into multiple parts for reassembly, wherein the detector assembly comprises at least one dual energy backscatter plastic detector screens having photo multiplier tubes, the screens being arranged in a cascade to capture both low and high energy photons independently; a storage unit to store images from detected scattered photons on the detector assembly; and a processing unit to detect, identify and classify concealed objects on the test subject.