利用同步辐射扭摆器光源研究X射线同轴轮廓成像质量  

Investigation on the image quality of in-line outline X-ray imaging with wiggler source of synchrotron radiation

作　　者：骆玉宇[1] 肖体乔[1] 陈敏[1] 刘丽想[1] 曾丹华[1] 杜国浩[1] 徐洪杰[1] 

机构地区：[1]中国科学院上海应用物理研究所,上海201800

出　　处：《核技术》2007年第2期97-104,共8页Nuclear Techniques

摘　　要：利用北京同步辐射光源研究了准平行束X射线同轴轮廓成像中影响成像质量的若干因素。结果表明,同步辐射光束在垂直方向能获得更好的边缘增强效果。尺寸较大的样品能获得更高的衬度。随着样品到探测器距离的增大,衬度增大,但存在一个最佳距离。高分辨率的探测器可以获得较高的衬度和较好的边界锐度。Factors that affect the image quality of in-line outline X-ray imaging are investigated with 4W1A light source in Beijing Synchrotron Radiation Facility (BSRF). The experimental results show that better edge-enhancing effect can be achieved in vertical direction of the synchrotron radiation beam. Higher contrast can be obtained for larger size samples. The image contrast increases with the sample-detector distance (SDD), and there is an optimal distance. The influence of detector resolution is also investig...

关 键 词：X射线同轴轮廓成像 成像质量 同步辐射 

分 类 号：O434.19[机械工程—光学工程]