Coincidence detector for a PET scanner

Details Coincidence detector for a PET scanner Coincidence detector for a PET scanner

1992-07-27

1993-08-31

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250369, G01T 1172

Patent

active

052411818

ABSTRACT:
A PET scanner includes a coincidence detector circuit which compares time markers produced by a ring of detector modules. Detector module outputs are sampled every 250 nanoseconds and assembled into event data packets which are time multiplexed through the coincidence detector circuit. The coincidence detector circuit is formed around a set of ASICs which perform the comparisons necessary to detect coincidence events. Coincidence event data packets are sorted into sinograms and used to reconstruct images.

REFERENCES:
patent: 4284890 (1981-08-01), Thompson
patent: 4983841 (1991-01-01), Stewart et al.
A Real Time Digital Coincidence Processor For Positron Emission Tomography, H. M. Dent, et al., IEEE Transactions on Nuclear Science, vol. 33, No. 1, Feb. 1986.
Coincidence Detection and Selection in Positron Emissions Tomography Using VLSI, D. F. Newport, et al., IEEE Transactions on Nuclear Science, vol. 36, No. 1, Feb. 1989.

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