New Approaches for Improvement of TOF-PET
Stefan E. Brunner, Lukas Gruber, Johann Marton, Ken Suzuki, Albert, Hirtl
TL;DR
This paper investigates how photon propagation, Cherenkov effects, and scintillator depth influence the time resolution of TOF-PET systems through simulations, offering insights for improving timing accuracy.
Contribution
It introduces simulation-based analysis of factors affecting TOF-PET time resolution, including scintillator length and depth of interaction, with methods for time walk correction.
Findings
Photon propagation and Cherenkov effects significantly impact time resolution.
Scintillator length influences coincidence time resolution.
Depth of interaction affects light output and arrival time, aiding in correction methods.
Abstract
We present results of simulations on the influence of photon propagation and the Cherenkov effect on the time resolution of LSO:Ce scintillators. The influence of the scintillator length on the coincidence time resolution is shown. Furthermore, the impact of the depth of interaction on the time resolution, the light output and the arrival time distribution at the photon detector is simulated and it is shown how these information can be used for time walk correction.
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