Novel method to measure the intrinsic spatial resolution in PET detectors based on monolithic crystals
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment(2019)
Abstract
The main aim of this work is to provide a method to retrieve the intrinsic spatial resolution of a gamma-ray detector block based on monolithic crystals within an assembled scanner. This method consists on a discrimination of the data using a software collimation process. The results are compared with an alternative method of separating two detector blocks far enough to produce a “virtual” source collimation due to the geometric constraints on the allowed coincidence event angles.
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Key words
Gamma ray detectors,Positron Emission Tomography,Intrinsic spatial resolution,SiPM array,Monolithic blocks
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