摘要
CBS机是近几年才兴起的无损探测技术。它与CT技术不同之处是传统CT技术是利用射线穿过人体时,各个部位对射线吸收的衰减量的积分来重建图像,而CBS机是利用入射射线在人体各个部位中的某点产生背散射(散射角α大于90°)的光子数来重建图像。重点分析了利用经典的卷积反投影算法重建康普顿背散射扫描图像过程中的数据修正问题。
CBS is a non-destruction detection technology, which was recently developed. The different in contrast with the conventional CT is that the conventional CT uses the integration of the X-ray absorptivity of the various apparatus to reconstruct the image, and that the CBS uses the rate at which the incidence ray are scattered from a particular region to reconstruct the image. The paper primarily analyses the data correction in reconstructing the image of CBS in the manner of classical filtered back-projection.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2005年第6期738-741,共4页
Nuclear Electronics & Detection Technology
