An X-ray microprobe facility using synchrotron radiation.
An X-ray microprobe facility using synchrotron radiation.
复制标题
使用同步加速器辐射的 X 射线微探针设施。
DOI：
10.1007/bf02992666
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发表时间：
1990
影响因子：
3.9
通讯作者：
Sutton,SR
中科院分区：
文献类型：
--
作者：
Gordon,BM;Jones,KW;Hanson,AL;Pounds,JG;Rivers,ML;Spanne,P;Sutton,SR
目前正在开发一种利用同步辐射进行微米空间分辨率痕量元素分析的X射线微探测器。该设施由两条光束线组成，一条包括1：1聚焦镜，另一条包括8：1椭球镜。目前，特征X射线荧光谱线的激发多采用“白光”。在薄层生物样品中，在5分钟的照射时间内，100μ平方米区域的灵敏度在2-20fg的范围内。还讨论了扫描技术以及显微断层成像和化学形态分析。包括了在特定生物医学研究中的应用。
An X-ray microprobe for trace elemental analysis at micrometer spatial resolutions, using synchrotron radiation (SR), is under development. The facility consists of two beamlines, one including a 1:1 focusing mirror and the other an 8:1 ellipsoidal mirror. At present, “white light” is used for excitation of the characteristic X-ray fluorescence lines. Sensitivities in thin biological samples are in the range of 2–20 fg in 100μm2areas in 5 min irradiation times. Scanning techniques, as well as microtomography and chemical speciation, are discussed. Application to a specific biomedical study is included.