辐射防护2025，Vol.45Issue(6)：576-585,10.
γ射线能量、码板与探测器厚度对编码成像视野范围的影响研究
Investigation of the effects of gamma-ray energy,coded aperture mask and detector thickness on the fully coded field of view
摘要
Abstract
In coded aperture imaging systems,the field of view(FOV)is conventionally determined by the geometric relationship between the coded aperture mask and the position-sensitive detector.However,the influence mechanism of critical physical parameters—including the thickness and material properties of both the mask and detector,as well as the radiation energy—on the fully coded field of view(FCFOV)has not been systematically investigated.This study employs a controlled-variable approach to systematically elucidate the relationship among these parameters(mask thickness/material,detector thickness/material,and energy)and the FCFOV.By introducing the concept of equivalent thickness to revise the conventional geometric model(which relies solely on mask-detector distance),we propose an empirical parameterized formula for FCFOV calculation,representing the first such model of its kind internationally.Both simulations and experimental results validate the effectiveness of the formula,demonstrating its superior accuracy in defining the FCFOV boundaries compared to traditional methods.These research findings provide a important reference for future FOV calibration and system design in coded aperture imaging applications.关键词
编码成像视野/码板厚度/探测器厚度/蒙特卡罗模拟/编码孔径Key words
coded imaging FOV/mask thickness/detector thickness/monte carlo simulation/coded aperture分类
能源科技引用本文复制引用
王一霖,梁秀佐,刘新萌,余小东,高歌,杨曜,帅磊..γ射线能量、码板与探测器厚度对编码成像视野范围的影响研究[J].辐射防护,2025,45(6):576-585,10.基金项目
山东省自然科学基金资助项目(ZR2022QA086). （ZR2022QA086）
