Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1997-05-30
1999-11-23
Westin, Edward P.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
2502521, 378207, G01T 1166
Patent
active
059904828
ABSTRACT:
A method of acquiring transmission self-contamination data for correcting transmission scan data in a nuclear camera system including two transmission radiation sources and two scintillation detectors. A first source is for transmitting radiation to only a first detector and a second source is for transmitting radiation to only a second detector during a transmission scan of an object to be imaged. To acquire the calibration data, radiation is transmitted from the second source to the second detector while the first source is maintained in a non-transmitting state. While the second source is transmitting, the first detector is used to detect the radiation transmitted from the second source. A set of self-contamination data is then generated based on the radiation from the second source detected with the first detector. The calibration data is used to correct a subsequent transmission scan of the object by subtracting the self-contamination data from the transmission scan data.
REFERENCES:
patent: 5596197 (1997-01-01), Jones et al.
Bertelsen Hugo
Shao Lingxiong
ADAC Laboratories
Israel Andrew
Westin Edward P.
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