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United States of America Patent
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Mar 10, 1981
Grant Date -
N/A
app pub date -
Jun 8, 1979
filing date -
Mar 23, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved computer assisted tomographic scanner is disclosed. The scanner includes a source of X-radiation and an array of detectors for determining X-ray intensity once that radiation has passed through a patient. The source emits a spread of radiation which is filtered to comprise a spread of two distinct energy ranges before the radiation reaches the patient. This filtering produces multiple intensity readings for a given X-ray path: thereby allowing imaging electronics within the scanner to reduce chromatic artifacts and provide electron density and atomic number mappings to the diagnostician.
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