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http://dx.doi.org/10.7742/jksr.2020.14.5.511

Usefulness of New GAGG Scintillation Detector for Gamma Camera : A Monte Carlo Simulation Study  

Kim, Jung-Soo (Department of Radiological Technology, Dongnam Health University)
Park, Chan Rok (Department of Radiological Science, Jeonju University)
Publication Information
Journal of the Korean Society of Radiology / v.14, no.5, 2020 , pp. 511-515 More about this Journal
Abstract
In this study, we evaluated image quality for new Gadolinium Aluminum Gallium Garnet (GAGG) scintillation material based on the Geant4 Application for Tomographic Emission (GATE) simulation tool. The gamma camera detectors with GAGG and NaI scintillation were designed. In particular, we modeled modified body phantom by National Electrical Manufacturers Association International Electrotechnical Commission to evaluate the simulated images. To analysis the image performance, the contrast to noise ratio (CNR) and coefficient of variation (COV) were used by drawn the region of interests, respectively. Based on the CNR and COV results, the CNR value for GAGG material is higher approximately 17 % than NaI material. In addition, the COV value for GAGG material is lower approximately 17 % than NaI material. In conclusion, we confirmed the performnace of GAGG based gamma camera is useful to improve the image quality for the nuclear medicine instrumentation.
Keywords
Nuclear Medicine; Monte Carlo Simulation; GAGG Scintillation Materials;
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