demonstrated that the image of a 3-dimensional object can be reconstructed from an infinite number of 2-dimensional projections of the object, providing the mathematical basis for CT image construction (Vienna, Austria)
In 1917, the Bohemian mathematician J.H. Radon proved in a research paper of fundamental importance that the distribution of a material in an object layer can be calculated if the integral values along any number of lines passing through the same layer are known1