中药显微结构的微聚焦管X射线相衬成像研究  

Investigations on microstructure of Chinese traditional medicine using phase-contrast imaging with microfocus X-ray tube

作　　者：魏逊[1,2] 肖体乔[1] 陈敏[1] 刘丽想[1] 骆玉宇[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 [2]中国科学院研究生院北京100049

出　　处：《核技术》2005年第12期889-894,共6页Nuclear Techniques

基　　金：上海市科技攻关项目(No.022261023);上海市自然科学基金(No.02ZF14116);国家自然科学基金面上项目(No.10275087)

摘　　要：采用基于微聚焦管的X射线相衬成像(XPCI)方法研究了多种中药材的显微结构,并与中药图谱及X射线吸收像相对照。实验结果表明,这种新的成像方法可以有效地对中药材的显微结构成像。与传统方法相比,其特点是不破坏样品结构且探测灵敏度较高。最后探讨了这种新的成像方法在中药显微鉴定领域的应用前景。The microscopic morphology of plant cells and their ergastic substances is an important standard for the identification of Chinese traditional medicine. We have developed a new method, X-ray phase-contrast imaging （XPCI） based on the microfocus X-ray tube, to explore microstructures of Chinese herbal medicine. The results indicate that XPCI is capable of distinguishing the structures commonly used in the identification. Non-destructive detection and high sensibility are counted among the major advantages of XPCI. The possibility of future applications of XPCI in the field of medicine identification is discussed.

关 键 词：相衬成像 微聚焦X射线管 中药材 显微鉴定 

分 类 号：O434.19[机械工程—光学工程] R282.5[理学—光学]