Development of an XRF Geochemistry Facility at the National Synchrotron Light Source

该合同将支持布鲁克海文国家实验室国家同步加速器光源（NSLS）的x射线荧光微探针设备的运行和进一步发展。该设施由芝加哥大学的马克·里弗斯（Mark Rivers）博士负责，他将在NSLS居住。x射线荧光微探针能够定量分析许多元素低至10-100十亿分之一的浓度范围，在薄样品中具有几微米的空间分辨率。事实证明，它在分析钻石、橄榄岩包裹体和其他地球上地幔样品中的微观相方面特别有用。除了这些分析之外，该项目还将通过增加x射线聚焦镜、单色器，在技术上改进现有的探针系统，并适应NSLS新的超导摆动光束线。

This award will support the operation and further development of an x-ray fluorescence microprobe facility at the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory. The facility is under the direction of Dr. Mark Rivers of the University of Chicago who will be in residence at the NSLS. The x-ray fluorescence microprobe is capable of quantitatively analyzing for many elements down to the 10-100 parts per billion concentration range with a spatial resolution of several microns in thin specimens. It is proving especially useful in analyzing microscopic phases found in diamonds, peridotite inclusions, and other samples of the Earth's upper mantle. In addition to such analyses, this project will technically improve the current probe system with the addition of x-ray focussing mirrors, monochromators, and adapt to the new superconducting wiggler beamline at NSLS.