Ponente
Descripción
Compton gamma cameras have been developed in recent years to image radionuclides across various nuclear application fields. A crucial aspect of nuclear medicine is the precise localization of radioisotopes to guide interventional procedures. In this context, Compton gamma cameras offer higher sensitivity than conventional pinhole gamma cameras, as they do not require mechanical collimation. Instead, the reconstruction of the initial gamma-ray trajectory relies only on the deposited energy and the impact positions of Compton-scattered events. Consequently, accurately determining the position of events within the scintillation crystal is one of the most critical factors influencing image quality. An experimental study is therefore presented, evaluating the performance of various scintillator crystals, differing in thickness, material, covering, and structure.
Abstract
Compton gamma cameras have been developed in recent years to image radionuclides across various nuclear application fields. A crucial aspect of nuclear medicine is the precise localization of radioisotopes to guide interventional procedures. In this context, Compton gamma cameras offer higher sensitivity than conventional pinhole gamma cameras, as they do not require mechanical collimation. Instead, the reconstruction of the initial gamma-ray trajectory relies only on the deposited energy and the impact positions of Compton-scattered events. Consequently, accurately determining the position of events within the scintillation crystal is one of the most critical factors influencing image quality. An experimental study is therefore presented, evaluating the performance of various scintillator crystals, differing in thickness, material, covering, and structure.
