Medical radiographic apparatus with means for notating detector

Details Medical radiographic apparatus with means for notating detector Medical radiographic apparatus with means for notating detector

1977-06-29

1979-01-30

Smith, Alfred E.

Radiant energy

Inspection of solids or liquids by charged particles

Analyte supports

250360, A61B 602

Patent

active

041374550

ABSTRACT:
In a computer-assisted tomography (CAT) apparatus, in which a fan-shaped X-ray distribution is rotated about the patients body, it is possible to use a ring of stationary detectors disposed to receive the radiation after passage through the body. In this arrangement the ring of detectors is of smaller radius than the locus of motion of the radiation source. It would appear that this would cause the detectors to obscure the body from the radiation. An arrangement disclosed moves out of the radiation beam those detectors which would present an obstruction so that only those required to collect radiation lie in the beam.

REFERENCES:
patent: 4005311 (1977-01-01), Ledley
patent: 4031395 (1977-06-01), LeMay
patent: 4045672 (1977-08-01), Watanabe

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