Technique for cat utilizing composite beam paths which are wider

Details Technique for cat utilizing composite beam paths which are wider Technique for cat utilizing composite beam paths which are wider

1976-06-21

1978-01-03

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

040669009

ABSTRACT:
In a radiographic apparatus, a source of radiation is arranged to scan a planer spread of radiation in a plane (or substantially in a plane) about the body of a patient being examined. A plurality of detector devices is arranged to provide data representing the absorption of the radiation along a plurality of paths within the spread, for different orientations in the plane, for processing to determine a distribution of absorption coefficients for a planar (or substantially planar) slice of the body. The arrangement is such that a predetermined number of the detector devices is irradiated by the spread of radiation at any time, and the actual devices irradiated change progressively as the scan progresses.

REFERENCES:
patent: 4031395 (1977-06-01), LeMay

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