Multiple layer positron emission tomography camera
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United States of America Patent
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Jun 30, 1987
Issued Date -
N/A
app pub date -
Oct 18, 1985
filing date -
May 13, 1985
priority date (Note) -
Expired
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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 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. The thickness of each layer increases exponentially from the inside of the ring to the outside of the ring. Identification of the scintillation detector may be performed by using layers with different timing constants, using silicon avalanche photodiodes or using a light guide transferring the light received from the staggered detectors to a non-staggered rectangular matrix.
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