Method and apparatus for constructing models of body sections

Apparatus for examining a body using radiation having a wavelength between 0.1A and 159A, comprising:

• A. a first source of radiation disposed to transmit radiation through a body and a first detecting means for detecting radiation from said first source transmitted through said body,
• B. a second radiation source adjacent said first detector for transmitting radiation through a body to be examined and second detecting means adjacent said first radiation source for detecting radiation from said second source transmitted through said body,
• C. means for translating said sources and detectors simultaneously across a section of the body,
• D. means for controlling the sources to generate a plurality of successive rays,
• D' each detecting means generating an output corresponding to the image of the body between the radiation source and the detecting means,
• E. circuit means for summing the outputs of said detectors,
• F. circuit means for processing the resultant signal to obtain an output, and
• G. means responsive to said output for producing a visual representation.