Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1997-05-30
1999-05-04
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
25036303, 378 20, G01T 129, G21K 510
Patent
active
059006366
ABSTRACT:
A nuclear camera system includes a pair of detectors orientated 180 degrees apart about an axis of rotation for detecting radiation emitted from an object, a pair of single-photon radiation point sources for transmitting radiation through the object, each to a different detector, and a gantry supporting the detectors and the radiation sources. The gantry provides rotation of the detectors and the radiation source about the axis of rotation, such that the angular positions of the radiation source about the axis of rotation remain fixed relative to the angular positions of the detectors. The camera system further includes a processing system coupled to control the dectors and the radiation sources and to selectably configure the detectors for either coincidence or single-photon emission imaging. The processing system controls the detectors to acquire coincidence emission data of the object and controls the single-photon point sources to acquire transmission data of the object, wherein the radiation from the point sources has a fanbeam illumination profile. The processing system corrects the acquired coincidence emission data for attenuation using the transmission data.
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Bertelsen Hugo
Hines Horace H.
Nellemann Peter
Shao Lingxiong
ADAC Laboratories
Hannaher Constantine
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