哈尔滨商业大学学报（自然科学版）2026，Vol.42Issue(1)：51-58,8.
快中子层析成像与锥束几何三维重建算法研究
Study of fast neutron tomography and 3D reconstruction with cone beam geometry
摘要
Abstract
Neutron tomography uses the characteristics of neutron-transmitted objects to reconstruct images based on neutron transmission intensity information and analyze internal structures.This paper focused on the reconstruction of neutron tomography images with three-dimensional cone-beam geometry.Fast neutron transmission data were obtained through particle transport program simulation.Image reconstruction was performed using the filtered back-projection algorithm(FDK),simultaneous algebraic reconstruction(SART),ordered subset simultaneous algebraic reconstruction(OSSART),simultaneous iterative reconstruction(SIRT),and least squares QR decomposition(LSQR)algorithms.The image reconstruction effects of various algorithms with different numbers of projection angles were compared and analyzed using indicators such as the structural similarity index(SSIM).The results showed that under different numbers of projection images,the reconstruction efficiency of the FDK algorithm was significantly better than that of the iterative algorithm;in sparse projection scenes,the comprehensive performance of the SIRT algorithm was relatively good.The study laid a foundation for the subsequent optimization of fast neutron three-dimensional reconstruction algorithms.关键词
快中子/锥束几何/迭代算法/三维重建/FDKKey words
fast neutrons/cone beam geometry/iterative algorithms/three-dimensional reconstruction/FDK分类
能源科技引用本文复制引用
邢胜玉,卢棚,刘源煜,李佳,梁立振,洪兵..快中子层析成像与锥束几何三维重建算法研究[J].哈尔滨商业大学学报（自然科学版）,2026,42(1):51-58,8.基金项目
自主立项项目:面向癌症治疗的紧凑型硼中子俘获治疗技术开发及产业应用(21KZS202) （21KZS202）
