Crystal-based coincidence timing calibration method

Details Crystal-based coincidence timing calibration method Crystal-based coincidence timing calibration method

2006-04-18

2006-04-18

Gagliardi, Albert (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

C250S363090

Reexamination Certificate

active

07030382

ABSTRACT:
A method of calibrating detectors in a detector ring of a PET scanner, each detector including a plurality of crystals, the PET scanner having a field of view, is disclosed. The method comprises collecting timing data indicative of coincidence events occurring between each pair of crystals within the field of view. The method further comprises determining a detector adjustment value for each detector, determining a crystal adjustment value for each crystal in each detector, and discretizing the crystal adjustment value for each crystal to produce a discretized crystal adjustment value for each crystal. Lastly, the method comprises calibrating each detector by applying the discretized crystal adjustment value for each crystal in each detector to the collected timing data indicative of coincidence events.

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Mark W. Lenox et al.,IEEE, “Coincidence Time Alignment for Planar Pixellated Positron Emission Tomography Detector Arrays”, pp. 1-3, 2002.

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