Simulation Study of Intrinsic Spatial Resolution in Gamma Camera Designs: Effects of Scintillator Type and Geometry.
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| Title: | Simulation Study of Intrinsic Spatial Resolution in Gamma Camera Designs: Effects of Scintillator Type and Geometry. |
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| Authors: | Al-Shammari, Fatimah M.1,2 (AUTHOR) 438204098@student.ksu.edu.sa, Aksouh, Farouk1 (AUTHOR), Al-Ayed, Mohammed S.1 (AUTHOR), Ivanov, Peter (AUTHOR) peter.ivanov@npl.co.uk |
| Source: | Science & Technology of Nuclear Installations. 12/28/2025, Vol. 2025, p1-10. 10p. |
| Subjects: | Spatial resolution, Scintillators, Geometry, Scintillation cameras, Simulation software, Simulation methods & models, Nuclear medicine, Spatial analysis (Statistics) |
| Abstract: | The gamma camera is a nuclear medicine imaging device based on a scintillation detector. It detects gamma ray photons emitted by radionuclides injected into a patient. The camera's spatial resolution, which is its ability to discriminate between two separate objects, is a main requirement for image quality. The intrinsic spatial resolution is the resolution of the scintillation crystal itself. It is affected by many factors, such as the type of scintillation crystal, its thickness, the energy of the primary gamma photon, and the detection efficiency. This work aims to study the intrinsic spatial resolution of a gamma camera using different scintillation materials and geometries in the energy range of 200 up to 1000 keV in a simulation study using the Geant4 program. From the results, the position measurement was determined with good accuracy, and the position improved when using the centroid method. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | The gamma camera is a nuclear medicine imaging device based on a scintillation detector. It detects gamma ray photons emitted by radionuclides injected into a patient. The camera's spatial resolution, which is its ability to discriminate between two separate objects, is a main requirement for image quality. The intrinsic spatial resolution is the resolution of the scintillation crystal itself. It is affected by many factors, such as the type of scintillation crystal, its thickness, the energy of the primary gamma photon, and the detection efficiency. This work aims to study the intrinsic spatial resolution of a gamma camera using different scintillation materials and geometries in the energy range of 200 up to 1000 keV in a simulation study using the Geant4 program. From the results, the position measurement was determined with good accuracy, and the position improved when using the centroid method. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 16876075 |
| DOI: | 10.1155/stni/5566252 |
