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US 4,709,382 AGranted
Imaging with focused curved radiation detectors
AssigneePicker International, Inc.
InventorRichard A. Sones
Life of this patent
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AssigneePicker International, Inc.
InventorRichard A. Sones
Estimating the term…
A digital radiography system is disclosed having a multi-element curved detector assembly. The system includes an X-ray tube having a focal spot from which its X-ray energy primarily emanates, and which is spaced from the detector assembly to define a subject examination space. The detector assembly includes a number of individual detector elements each having a radiation sensitive face, the element faces collectively defining a concave curved surface oriented toward the focal spot. The assembly of elements can embody forms including a single curved line of elements, multiple similarly curved lines defining collectively a portion of a cylinder, or a three-dimensional curved array defining a portion of a sphere. Multiple layer stacked arrays can also be used. Each element responds to incident X-rays to produce an electrical charge signal indicative of the radiation. The detector assembly can be scanned relative to a subject in the examination space, and time delay and integrate circuitry is employed to improve the signal to noise characteristics of data represented by the electrical signals, by shifting and adding the signals in synchrony with scan motion prior to processing by imaging circuitry to derive a visual image of internal structure of a subject at the examination space.
A focused radiation detector comprising:
A slit projection digital radiography system for imaging penetrating electromagnetic radiation, said system comprising:
A slit scanning projection digital radiography imaging system comprising:
A medical diagnostic slit scan projection digital radiography system comprising:
A digital slit scan projection radiography system for imaging separate patterns of penetrative radiation falling respectively within first and second energy ranges, said system comprising:
A system for separately imaging shadowgraphic patterns of projected penetrative radiation falling within first and second energy ranges, said system comprising:
A medical diagnostic x-ray system comprising:
A medical diagnostic system comprising:
In a radiation imaging system including a radiation source and imaging circuitry integratable with a detector for producing an image representing radiation incident on the detector, the improvement comprising:
In a slit scan projection energy subtraction digital x-ray imaging system including an x-ray source and imaging circuitry coupleable to a detector for producing an image of radiation incident on the detector, the improvement comprising:
In a system for imaging penetrating electromagnetic radiation, including a radiation source, the improvement comprising:
A digital radiography system comprising:
A slit scan projection digital radiography x-ray imaging system comprising:
A system for imaging penetrative electromagnetic radiation, said system comprising:
A system for imaging penetrative electromagnetic radiation, said system comprising:
An x-ray imaging system comprising:
A medical diagnostic slit scan projection digital radiography system comprising:
A digital slit scan projection radiography system for imaging separate patterns of penetrative radiation falling respectively within first and second energy ranges, said system comprising:
A medical diagnostic slit scan projection energy subtraction digital radiography system comprising:
A medical diagnostic slit scan projection energy subtraction digital radiography system comprising:
Dependencies are inferred from the claim text.