| 摘要 |
An X-ray object cross section image reconstruction system wherein X-ray fan beam path attenuation signals, detected through a cross section layer of an object at a multiplicity of scan angles, modulate a laser scan light beam analog of the X-ray fan beam scan geometry. The laser light beam signals are optically rotated and directed according to the fan angle, forming spatial correlation centers in an image plane for each object cross section elemental volume. The light signal intensity at elemental points in the image plane is sensed and electrically integrated thereby detecting and exalting the elemental object attenuation correlated signals. Interfering object shadow superfluous spread distributions are corrected by an anticipatory correcting input signal dispersion forming opposing and normalizing spread distributions. The corrected cross section image is formed during X-ray scan for immediate display on a television monitor screen, and may be permanently recorded on a video tape recorder.
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