The experimental procedure and results of a comparative study of the imaging characteristics of proton and x-ray CT scans are presented. Scans of a human brain and heart are discussed. The proton produced images are found to be similar in information content while providing a decided dose advantage.
Keywords: proton computed tomography, proton radiography, range telescope, low-dose scanning, dose efficiency, noise equivalent quanta (NEQ), biological scans, streak artifacts
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