基于X射线胶片的固体火箭发动机断面图像重建  

Solid Rocket Motor Sectional View Reconstruction form X-Ray Films

作　　者：艾春安[1] 桑元[1] 徐志高[1] 刘瑜[1] 

机构地区：[1]第二炮兵工程学院,西安710025

出　　处：《无损检测》2011年第3期1-4,共4页Nondestructive Testing

摘　　要：固体火箭发动机切向X射线实际检测结果是稀疏视角型和截断型数据,其检测胶片只能显示二维重叠影像信息,显示结果不直观。在滤波反投影算法的基础上,提出了根据X射线胶片信息进行固体火箭发动机断面局部感兴趣区域(ROI)图像重建方法。仿真计算表明,在有限角度切向照相情况下,该方法对固体火箭发动机切向缺陷,特别是脱粘缺陷的断面图像重建有效。Incomplete projection data was obtained by X-ray tangential detection of solid rocket motor.Superposition of defect information in X-ray film made judging work some difficult.In this paper,a method based on filter back projection algorithm was presented to reconstruct region of interesting in sectional view of solid rocket motor using the projection information of X-ray film.The simulation result showed that this method was effective for tangential defect especially the debonding in Solid Rocket Motor on the occasion of limited-angle and tangential detection.

关 键 词：固体火箭发动机 X射线胶片 不完全投影数据 断面重建 滤波反投影算法 

分 类 号：TG115.28[金属学及工艺—物理冶金]