Patent ID: 6839406

Claim:
A method for detecting an item in an object, comprising the steps of: in a lower testing stage in a detection apparatus, scanning the object with x-rays to detect said item; determining the location of said item in said object, said location including only one set of first and second dimensional coordinates of said item, said location being representative of a point within said object; and transmitting said location to a higher testing stage in said detection apparatus; and in said higher testing stage, directly testing said item at said location, with said direct testing comprising x-ray diffraction analysis, said diffraction apparatus comprising an x-ray source and a detector, the x-ray source being adjustably positioned in a plane parallel to a travel direction of said object, the detector being adjustably positioned in a plane parallel and in a plane perpendicular to the travel direction of said object, wherein the x-ray source and detector are positioned separately and synchronously on the basis of said point.