Patent ID: 7646850
Filing Date: 2010-01-12
Classification: G01N

Abstract:
1. A method of detecting a material in an object to be analyzed in a radiographic imaging system comprising: providing two-dimensional area illumination of an object with monochromatic x-ray radiation from a divergent source without restrictively collimating the x-ray radiation, said two-dimensional area illumination being wider than a pixel in two dimensions; rejecting the x-ray radiation scattered by the object outside of a first predetermined range of angles defined about a first characteristic angle of a first material of the object, the first characteristic angle of the first material being a first scattering angle about which the first material of the object coherently scatters the x-ray radiation; and detecting coherently-scattered radiation, the coherently-scattered radiation comprising the x-ray radiation diffracted by the object within the first predetermined range of angles defined about the first characteristic angle of the first material.