Abstract
A new method for three dimensional tomographic analysis of micro-samples is presented. The technique is capable of accurately calculating the mass density and composition distribution of a sample, using the data measured from a STIM and PIXE tomography experiment. The technique solves for the effects of the energy dependence of the proton stopping-power and X-ray production cross-section. It also incorporates X-ray attenuation for a cone geometry between the sample and X-ray detector. A priori information about low Z elements is easily incorporated into the technique. The reconstruction of the mass density and composition of a phantom is shown.
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