: In Positron Emission Tomography (PET), matching pairs of photons (coincidences) is computationally expensive at high rates.
Based on current technical and academic data, here are the most relevant "reviews" and interpretations of coincidence theory in this context: 1. Mathematical Coincidence Theory
: Axioms for the coincidence index provides a foundational review of how these indices characterize local behavior. 2. KIT Research: PETNet Coincidence Detection