Equipment: Acquisition of an EDS detector and Carbon Coater for Quantitative FEG-SEM Analysis

设备：购买 EDS 检测器和碳镀膜机，用于定量 FEG-SEM 分析

• 批准号: 2218698
• 负责人: Matthew Gleeson
• 金额: $ 18.51万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-07-15 至 2024-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2218698&HistoricalAwards=false
• 关键词: Equipment; Acquisition; EDS; detector; Carbon

This award will permit the acquisition of an Energy Dispersive Spectrometer (EDS) and a new carbon coater, with a high-precision thickness monitor for the University of California at Berkeley. These purchases will augment a new Field Emission Scanning Electron Microscope (FEG-SEM) facility to address a wide range of geological problems. The acquired facilities will also represent the focus of a new graduate-level course on electron beam microanalytical methods in the Earth and Material Sciences. The project team will also work with an undergraduate student to develop open-source Python3 tools for visualization and interpretation of spatial chemical data to help the community move away from proprietary software.In situ chemical analysis forms an integral part of the project teams research in volcanology, igneous petrology, and mantle geochemistry. The capabilities of the new EDS detector provide the ability to collect rapid, multi-scale geochemical information that will be vital for petrological analysis of past volcanic eruptions and has potential to provide near real-time petrological monitoring of future volcanic activity (e.g., assessing crystal zoning to obtain transport times, crystal chemistry to determine magma storage depths). Fully quantitative chemical mapping via EDS is also critical to research on melt transport in magmatic mush zones and the onset of sulfide saturation during magmatic differentiation. Furthermore, the new equipment will also be utilised by other researchers at UC Berkeley, promoting interdisciplinary collaborations. For example, chemical data from EDS mapping will be combined with rocks magnetic data to determine sediment redox chemistry in ancient environments, and to assess the timescales between breakage, sintering and mixing of explosive mafic magmas.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项将允许收购能源分散光谱仪（EDS）和新的碳夹具，并为加利福尼亚大学伯克利分校提供了高精度厚度监测仪。这些购买将增加新的现场排放扫描电子显微镜（FEG-SEM）设施，以解决广泛的地质问题。获得的设施还将代表一个新的研究生级课程在地球和材料科学中的微分析方法的重点。该项目团队还将与一名本科生合作，开发开源Python3工具，用于可视化和解释空间化学数据，以帮助社区摆脱专有软件。IntuChemical Chemical Analysissity构成了火山学研究团队研究团队不可或缺的一部分。新EDS探测器的功能提供了收集快速，多尺度的地球化学信息的能力，这对于过去火山喷发的质学分析至关重要，并且有可能提供对未来火山活性的近乎实时的质量监测（例如，评估晶体分区，以获得运输时间，确定Magma储存时间）。通过EDS进行完全定量的化学映射对于研究岩浆糊区域的熔体转运以及岩浆分化过程中硫化物饱和的发作也至关重要。此外，加州大学伯克利分校的其他研究人员还将利用新设备，以促进跨学科合作。例如，来自ED映射的化学数据将与岩石磁数据相结合，以确定古代环境中的沉积物氧化还原化学，并评估爆炸性爆炸性的脱发Maffic岩浆之间的时间表。该奖项反映了NSF的法定任务，并被认为是通过基金会的知识优点和广泛的crietia cristers cripers crietia crietia criperia criperia cristia criperia criperia criperia criperia criperia criperia criperia criperia criperia criperia criperia均值得通过评估。