作者: Martin Annis
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摘要: An x-ray source (14) emits a cone beam (22) to fixed horizontal slit (40) in an x-ray-blocking sheet (16) The produces fa (24) that is chopped into pencil (26) by rotating disk (18) with radial slots (42) sweeps across strikes subject (12), producing backscatter (28) read detector (20) (14), (16), (18), and translate vertically produce complete image of the (12) uses plast scintillator situated very close curved around sides which increases average solid angle subtended b at point on surface (12).