Multiple layer positron emission tomography camera

Details Multiple layer positron emission tomography camera Multiple layer positron emission tomography camera

1985-05-13

1987-03-03

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250367, 250363S, G01T 120, G01T 164

Patent

active

046477799

ABSTRACT:
A positron emission tomography camera having a patient area with a plurality of fixed detector rings positioned side by side around the patient area to detect radiation. Each ring contains a plurality of scintillation detectors directed toward the patient area for defining a plane slice. Each ring includes multiple layers of scintillation detectors in which the detectors in one of the layers is offset relative to the detectors in the other layers in a ring for increasing the sampling of detected radiation. Photo multipliers for converting detected radiation into electrical pulses are positioned adjacent each ring but offset from the plane of each ring and are directed perpendicularly to the plane of the adjacent ring. The depth of each ring is sufficient to stop gamma radiation but the depth of each layer is less whereby image resolution is improved.

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patent: 4511799 (1985-04-01), Bjorkholm
patent: 4563582 (1986-01-01), Mullani

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