硬X射线相位衬度成像的实验研究  

Experimental Research on Hard X-Ray Phase-Contrast Imaging

作　　者：高鸿奕[1] 谢红兰[1] 陈建文[1] 李儒新[1] 徐至展[1] 田玉莲[2] 朱佩平[2] 冼鼎昌[2] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800 [2]中国科学院高能物理所,北京100080

出　　处：《中国激光》2005年第2期167-169,共3页Chinese Journal of Lasers

基　　金：国家自然科学基金(60278030);上海市光科技基金(036105028)资助项目

摘　　要：　介绍了硬X射线(类同轴)相位衬度成像的工作原理及其实验研究结果。X射线波长为0 08860 nm,样品为未经任何处理的飞蛾,记录介质为X射线胶片。胶片经处理以后,用光学显微镜读出,可以看出样品的许多细节,尤其在折射率突变处。而同样条件下基于吸收衬度机制的硬 X射线吸收成像,由于是弱吸收样品,没有观察到任何图像。The principle and experimental results of hard X-ray phase-contrast imaging are presented in the paper. The wavelength of the X-ray is 0.08860 nm and the specimen is a natural moth. The obtained image was readout by optical microscope, using Kodak high-resolution X-ray films as recording medium. It is demonstrated that some fine structures of the moth were recognized, especially in the boundary areas of the specimen. Contrarily, no absorption-contrast images were observed under the same conditions.

关 键 词：X射线光学 相衬成像 同步辐射 

分 类 号：O434.19[机械工程—光学工程]