Radiography

Details Radiography Radiography

1977-12-19

1980-06-03

Smith, Alfred E.

Radiant energy

Inspection of solids or liquids by charged particles

Analyte supports

250363S, 250366, A61B 602

Patent

active

042063612

ABSTRACT:
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.

REFERENCES:
patent: 3106640 (1963-10-01), Oldendorf
patent: 3432657 (1969-03-01), Slavin
patent: 3715587 (1973-02-01), Burkhalter et al.
patent: 3715588 (1973-02-01), Rose
Beaver et al, "A Digital Multichannel Photometer", Rev. Sci. Instr., vol. 42, No. 9, Sep. 1971.

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