Producing a 2-1/2D solid model or stereo pair of images using three diverging X-ray curtain beams

摘要

A method of producing an X-ray image, or more preferably a stereo pair of images, by providing three X-ray curtain beams at varying angles between the beams to exaggerate the resulting stereo affect, and a linear detector associated with each beam. Preferably, a pair of scatter detectors are provided for each X-ray curtain beam at angles corresponding to the known scatter angles of particular materials for positive identification of such materials. (e.g. polycrystalline materials or explosives). The invention creates a two dimensional solid model representation of an object having psychological clues as to the depth of the object. This is sometimes known as a 2 -D solid model.