Radiography
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United States of America Patent
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-
Sep 6, 1988
Issued Date -
N/A
app pub date -
Oct 17, 1983
filing date -
Feb 21, 1975
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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