Abstract
Chirp-pulse microwave computerized tomography (CP-MCT) is atechnique designed to image temperature variations inside abody. In the prototype developed at Niigata University imagesare obtained by means of the basic algorithm of tomography,namely filtered backprojection. The purpose of this paper isto develop an improved linear model for data reduction. Weintroduce a method, based on scattering theory, for computingthe projections of a small phantom and we use these projectionsfor defining the response function of the system. Our resultsalso indicate that CP-MCT data are related to the variations ofthe attenuation constant inside a body. We conclude that, ifthese variations are sufficiently smooth, then CP-MCTprojections can depend linearly on the distribution of theattenuation constant through the response function of thesystem.
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