MRI: Acquisition of an Electron Microprobe for Major and Trace Element Analysis

MRI：获取用于主量和痕量元素分析的电子显微探针

• 批准号: 1427626
• 负责人: Kevin Mahan
• 金额: $ 80万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-09-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1427626&HistoricalAwards=false
• 关键词: MRI; Acquisition; Electron; Microprobe; Major

This award will provide funds to acquire a modern Electron Microprobe. Electron microprobe analysis is a technique for the chemical quantification of sub-micron volumes of solid material, a basic requirement across the full range of natural and engineering sciences. The new instrument will maximize spatial and analytical precision (to 200-700 nanometers and 1-10 parts per million levels). A core regional facility is envisioned to enable cutting-edge science, new discovery opportunities, and to complement the teaching missions of institutions throughout the Rocky Mountain region. The facility will support dissertations and theses for graduate and undergraduate students, and a variety of training opportunities will be offered including a new course on analytical techniques and one-day workshops on using the instrument.Identification of the chemical compositions and fine spatial heterogeneities in natural materials (e.g. rocks, minerals, fossils, soil) is crucial for understanding formation processes and material properties, whereas engineered synthetic materials require characterization for technology design and quality control. Minor and trace element compositions can enable determination of the origin of a variety of natural Earth. These data can help determine the processes associated with the formation of strategic ore deposits, and to understand processes affecting potential microbial life forms on the deep seafloor and in other planetary environments. Minor and trace element variation can dramatically alter the properties of metals, ceramics, carbides and other synthetic materials. Newly developed techniques allow electron microprobe analysis of thin films for both layer thickness and composition.

该奖项将提供资金购买现代电子显微探针。电子微探针分析是一种对亚微米固体材料进行化学定量的技术，是整个自然科学和工程科学的基本要求。新仪器将最大限度地提高空间和分析精度（达到 200-700 纳米和百万分之 1-10 的水平）。预计将建立一个核心区域设施，以实现尖端科学、新的发现机会，并补充整个落基山脉地区机构的教学任务。 该设施将为研究生和本科生提供论文和论文支持，并将提供各种培训机会，包括关于分析技术的新课程和关于使用该仪器的为期一天的研讨会。天然物质中化学成分和精细空间异质性的识别材料（例如岩石、矿物、化石、土壤）对于理解形成过程和材料特性至关重要，而工程合成材料需要表征以进行技术设计和质量控制。微量元素和微量元素成分可以确定各种自然地球的起源。这些数据可以帮助确定与战略矿床形成相关的过程，并了解影响深海底和其他行星环境中潜在微生物生命形式的过程。微量元素和痕量元素的变化可以极大地改变金属、陶瓷、碳化物和其他合成材料的性能。新开发的技术允许电子微探针分析薄膜的层厚度和成分。