Patent ID: 6407386
Filing Date: 2002-06-18
Classification: G01N,H01J

Abstract:
A method for automatic material analysis of an object within a background, comprising the steps of:automatically determining a desired location on the object for spectrum acquisition; acquiring an object spectrum in accordance with said determining; obtaining a background spectrum; obtaining count numbers from the object spectrum, corresponding to elements present in the object; obtaining count numbers from the background spectrum, corresponding to elements present in the background; analyzing the count numbers of the object spectrum to determine whether a count number appearing in the object spectrum is a non-present element in the object; analyzing the count numbers of the background spectrum to determine whether a count number appearing in the background spectrum is a non-present element in the background; standardizing the spectra count of the object according to the count of said non-present element to obtain a net object count; and analyzing the net object count to determine the material composition of the object.