Determining chemical compositions by the method of multi-energy radiography

A theoretical model of multi-energy radiography is proposed and two approaches—“synthesis” and “analysis”—to studying the structure of objects by this method are considered. It is theoretically proved that the atomic numbers of elements and the other parameters of chemical composition of a sample can be restored from the multichannel absorption data. The multi-energy radiography approach and possible generalizations open wide prospects for both basic experimental investigations and nondestructive testing applications.