基于实验室设备自主开发了一套320 kV锥束工业CT成像系统.首先设计了基于运动控制卡的六轴机械扫描平台,并将其与320 kV射线机、平板探测器结合搭建了锥束CT成像系统的硬件.其次,利用平板探测器和运动控制卡的动态链接库开发锥束CT投影数据采集软件和重建软件,自主开发FDK算法并基于CUDA架构实现FDK算法的GPU加速.最后,采用阻尼器对锥束CT成像系统进行测试.结果表明,整个系统运行稳定,可以获得高质量的CT重建图像,且重建效果与VG STUDIO MAX 3.4软件的重建效果一致.
Development of 320 kV Cone Beam Industrial CT Imaging System
A self-developed 320 kV cone-beam industrial CT imaging system was designed with laboratory equipment.Firstly,a six-axis mechanical scanning platform based on motion control card was designed,and the hardware of the cone-beam CT imaging system was assembled,integrating a 320 kV X-ray machine and a flat panel detector.Secondly,using the dynamic link library of the flat panel detector and motion control card,softwares for cone beam CT projection data acquisition and reconstruction were developed.The FDK algorithm was independently developed and GPU acceleration of the FDK algorithm were implemented based on the CUDA architecture.Finally,a damper was utilized to test the cone-beam CT imaging system.The results show that the entire system operats stably and is capable of producing high-quality CT reconstruction images,which is consistent with the reconstruction effect of VG Studio MAX 3.4 software.
NETL
NSTL
万方数据
