Method and a system for determining parameters of reactions of gamma quanta within scintillation detectors of pet scanners

Abstract

A method for determining parameters of reaction of a gamma quantum within a scintillation detector of a PET scanner, wherein the signal measured by the scintillator is transformed in at least one photomultiplier into an electric measured signal. The method comprises obtaining an access to a database () comprising reference standard signals (W) and reaction parameters assigned to the reference standard signals (W); comparing the measured signal (S) to the reference standard signals (W) and selecting the reference standard signal (W) that best fits the measured signal (S); assigning to the measured signal (S) the reaction parameters assigned to the selected best-fitting reference standard signal (W), as parameters of the reaction of the gamma quantum within the scintillation detector () for the measured signal (S); wherein the measured signal (S) and the reference standard signals (W) are represented by points (P) within a generalized measurement space (Ωp) having a number of dimensions (N measurements) being equal to the total number of measurements performed for that gamma quantum.