Upgrading of Infrared Spectroscopic Instrumentation at the Mineral Spectroscopy Lab at the California Institute of Technology

加州理工学院矿物光谱实验室红外光谱仪器升级

• 批准号: 9725897
• 负责人: George Rossman
• 金额: $ 8.38万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-03-01 至 2000-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9725897&HistoricalAwards=false
• 关键词: Upgrading; Infrared; Spectroscopic; Instrumentation; Mineral

9725897 Rossman This grant provides partial support of the costs of acquiring a new Fourier Transform Infrared (FTIR) spectrometer for structural mineralogic and petrologic research at the California Institute of Technology. A state-of-the-art Nicolet FTIR spectrometer will replace Caltech's current Nicolet 60SX FTIR spectrometer which was purchased in 1984. This new instrument will provide over an order of magnitude greater sensitivity for analyses of volatile components (primarily H2O and OH-) within minerals and glasses relative to their current FTIR spectrometer. Rossman's research focuses on the quantitative analysis of hydrous components (H2O and OH-) in minerals and glasses and has shown hydrogen to be one of the most pervasive elements in the crust and upper mantle. This research has had a major impact on our understanding of the hydrogen budget of the Earth and has profound implications for the rheology and electronic properties of the crust and upper mantle. This grant provides the latest tool for continued research in mineral spectroscopy including studies of the behavior of water and hydroxide through mineral phase changes and studies of volatiles in inclusions, mantle silicates, basaltic magmas, experimental high-pressure run products and synthetic zeolites. ***

9725897 Rossman 这笔赠款提供了部分支持购买一台新的傅里叶变换红外 (FTIR) 光谱仪的费用，用于加州理工学院的结构矿物学和岩石学研究。 最先进的 Nicolet FTIR 光谱仪将取代加州理工学院目前于 1984 年购买的 Nicolet 60SX FTIR 光谱仪。这种新仪器将为挥发性成分（主要是 H2O 和 OH-）的分析提供更高一个数量级的灵敏度。与当前的 FTIR 光谱仪相关的矿物和玻璃。 罗斯曼的研究重点是矿物和玻璃中含水成分（H2O 和 OH-）的定量分析，并表明氢是地壳和上地幔中最普遍的元素之一。 这项研究对我们对地球氢收支的理解产生了重大影响，并对地壳和上地幔的流变学和电子特性产生了深远的影响。 这笔赠款为矿物光谱学的持续研究提供了最新的工具，包括通过矿物相变研究水和氢氧化物的行为，以及研究包裹体、地幔硅酸盐、玄武岩岩浆、实验高压运行产品和合成沸石中的挥发物。 ***