Radiography

Details Radiography Radiography

1976-03-19

1977-06-21

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

250445T, A61B 602, G01N 2308, H05G 130

Patent

active

040313956

ABSTRACT:
In a radiographic apparatus a source of radiation is arranged to scan a planar spread of radiation 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 slice of the body. The arrangement is such that a predetermined number of the detector devices are irradiated by the spread of radiation at any time and the actual devices irradiated change progressively as the scan progresses.

REFERENCES:
patent: 3944833 (1976-03-01), Hounsfield

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