Speaker
Description
Metascintillator systems composed of LYSO:Ce and MAPbBr3 perovskites were recently measured in the laboratory with high end electronics. The timing behavior of this metascintillator rendered two dominant subsets: 44% of fast, perovskite-led and shared events at 46 ps and 56% of slow, LYSO:Ce events at 110 ps. With such coincidence timing resolution (CTR), ultrafast ToF regimes are reached, and this offers an opportunity to better understand the effect of such CTR on final image quality. The possibility of adapting this configuration to semi-monolithic metascintillator also offers very good depth-of-interaction discrimination, at 3 mm. To benchmark this detector architecture, a brain PET scanner architecture was developed in GATE, with a Hoffman brain phantom as the leading approach. A series of reconstruction approaches, for instance using the fast subset as priors or weighing in on the different subsets, are to take place. Data will become available as an open invitation to the reconstruction community to experiment with, to demonstrate the potential of new generation high end detectors for medical imaging.
| Track | FTMI |
|---|---|
| Presentation type | Oral |