Fault-tolerant detector for gamma ray imaging
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United States of America Patent
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Feb 17, 2004
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N/A
app pub date -
Aug 31, 2001
filing date -
Jun 23, 2001
priority date (Note) -
Expired
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Abstract
A nuclear imaging apparatus includes a radiation detector comprising an array (18) of solid state detector elements (22) responsive to incident gamma radiation by emitting a current spike. A pixel correction processor (44) detects defective detector elements in the array and a flood correction circuit (66) corrects detected radiation events (70) based on sensitivity differences between a plurality of groupings of detector elements in the array. A reconstruction processor (76) reconstructs an image representation from the corrected radiation events (74).
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