Orthogonal scan computerized tomography

Details Orthogonal scan computerized tomography Orthogonal scan computerized tomography

1976-11-11

1978-08-15

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

250445T, A61B 602, G01N 2308

Patent

active

041075323

ABSTRACT:
Two sources, each producing divergent beams of radiation, are translated in orthogonal directions. The divergent beams are each scanned through the object being studied. The sum of the angular extent of each of the divergent beams is approximately 180.degree. so that the detected radiation transmitted through the object provides all of the information required to produce a cross-sectional image of the object. An advantage in the use of the orthogonal scans of the present invention is that faster scan times are achieved due to the simple translational motion required of each of the two sources. This allows studies to be made of dynamic organs such as the heart. A further advantage is that the detectors used can be simply calibrated during the scan since, for part of the scan, the divergent beam is not transmitted through the object.

REFERENCES:
patent: 2512242 (1950-06-01), De Lassaus St. Genies
patent: 3588480 (1971-06-01), Unger et al.

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