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U.S. Department of Energy
Office of Scientific and Technical Information

Radiography

Patent ·
OSTI ID:5478639
A computerized tomographic apparatus is described in which a wide fan of radiation scans a patient by rotating therearound, the fan being substantially flat and being maintained in alignment with a selected cross-sectional slice of a patient's body. Radiation emergent from the body along many substantially linear paths across the slice is detected by a detector means including a vacuum tube device containing a photo-cathode and, spaced therefrom, semiconductive means. Electrons emitted from the photo-cathode in response to light incident thereon (The light emanating from x-ray sensitive scintillating material) are accelerated towards the semiconductive means and impact thereon causing the generation of electrical signals indicative of the amount of x-radiation falling on the scintillating material.
Assignee:
EMI Ltd (United Kingdom)
Patent Number(s):
US 4206361
OSTI ID:
5478639
Country of Publication:
United States
Language:
English

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