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Design and Simulation of a Gamma-Ray Camera for PET with a Continuous Scintillation Crystal

Behzad Boghrati, Ali Moussavi Zarandi, Mitra Ghergherehchi, Jong Seo Chai

Nuclear Technology

Volume 178 / Number 3 / June 2012 / Pages 324-334


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One of the main advantages of continuous scintillators is the excellent depth of interaction identification capability. We present the results of the Monte Carlo program OPTICS simulating the light response of a gamma-ray detector module comprising a continuous scintillator and an avalanche photodiode array to determine the effect of scintillator surface treatment on the ability to determine the three-dimensional position of interaction. We investigated the effect of optical coupling compounds, surface treatment, and depth of interaction on the distribution of scintillation photons reaching the photodetector pixels. We show that a black coating material without an air gap leads to improvement.

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