长周期 X 射线驻波技术及其应用  

Long period X-ray standing wave and its applications

作　　者：陈学诗[1] 王晋 

机构地区：[1]中国科学院上海原子核研究所 [2]阿贡国家实验室

出　　处：《核技术》1997年第4期252-256,共5页Nuclear Techniques

摘　　要：长周期Ｘ射线驻波是最近几年发展起来的一门新技术，可作为凝固相或液相样品中金属原子层的空间纵深结构探针。当代的同步辐射长周期Ｘ射线驻波技术的纵深空间探测范围可达～１００ｎｍ，空间分辨率可达～０．１ｎｍ，灵敏度可达～１０１２Ａｏｍ／ｃｍ２，可用于蛋白质等生物大分子与底物的相互作用和功能结构、带电表面与电解液的界面结构等领域的研究。Recently,the long period X-ray standing wave method has been developed as astructure probe for atom layers in thin solid or liquid films.Formation and characteristics of the long period X-ray standing wave field are described and the physical model is demonstrated for its applications.With the advanced synchrotron radiation source,this method reaches a detection range of ～100nm,a space resolution of～0.1nm and a sensitivity of ～10 12 atom/cm 2,and shows itself as a new ypowerful tool for investigating membrane-protein and charged surface-solution interactions and structure characterizations.

关 键 词：长周期 X射线驻波 界面 微结构探针 

分 类 号：TG115.221[金属学及工艺—物理冶金]