An Electron Microprobe Light Element Spectrometer

这个奖项将提供一半的资金，使它 加州理工学院有可能获得一个新的四晶体光谱仪， 他们的电子探针这个新的四晶体光谱仪 包含最先进的分层色散元件伪晶体 能够分析非常轻的元素（铍， 碳），效率高。加州理工学院致力于提供 这笔收购所需的额外资金。 购买这种最先进的光谱仪/晶体 系统将（1）显著提高PI的分析能力 Be、B和C，这对各种地质学意义重大。 调查，如确定二氧化碳含量的 玻璃和硅酸盐中的B取代;和（2）使这些 研究者开发上级定量分析校正 非常轻的元素和软X射线线的程序。如在 过去，这些调查人员表示，他们计划使这些 更正程序广泛提供给其他感兴趣的 investigators.

This award will provide half of the funding to make it possible for Caltech to acquire a new four-crystal spectrometer for their electron microprobe. This new four-crystal spectrometer contains state-of-the-art layered dispersion element pseudocrystals that enable analysis of very light elements (beryllium through carbon) with high efficiency. Caltech is committed to provide the additional funds needed for this acquisition. The acquisition of this state-of-the-art spectrometer/crystal system will (1) significantly improve the PIs capability to analyze Be, B, and C which will be of importance for a variety of geologic investigations such as determining the carbon dioxide content of glasses and B substitution in silicates; and (2) enable these investigators to develop superior quantitative analysis correction procedures for the very light elements and soft X-ray lines. As in the past, these investigators indicate that they plan to make these correction procedures widely available to other interested investigators.