X-ray Visualization and Analysis of Multicomponent Subjects

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Science  26 Dec 1958:
Vol. 128, Issue 3339, pp. 1622-1623
DOI: 10.1126/science.128.3339.1622


The information carried by x-rays showing the distribution of each material of which a subject is assumed to be composed is distributed on separate films by means of a controlled variation in composition of the scanning radiation. The beam is modulated, for example, by simultaneous motion of several wedges. The method is useful in quantitative x-ray analysis and as a system for making radiographs predominantly sensitive to one material in the subject.