MRI: ACQUISITION OF A MODERN ELECTRON MICROPROBE

MRI：现代电子显微镜的获得

• 批准号: 1337156
• 负责人: John Fournelle
• 金额: $ 96.03万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-08-01 至 2015-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1337156&HistoricalAwards=false
• 关键词: MRI; ACQUISITION; MODERN; ELECTRON; MICROPROBE

The University of Wisconsin-Madison is acquiring a modern Electron Microprobe (EMP) to replace a worn 21-year-old instrument. It is the only EMP in Wisconsin and is heavily used by many NSF-funded researchers. No other technique matches the versatility or accuracy for in situ chemical analysis of major to trace elements at the micron-scale. It is non-destructive, permitting chemical data to be correlated with other forms of analysis. A modern EMP will also have new capabilities including enhanced imaging and a more intense LaB6 source that will permit sub-micron analysis. The new capabilities and enhanced reliability of a modern EMP are required by over 116 currently funded federal (74 NSF) grants, valued at $18M in Geoscience (64 federal grants, 47 NSF), $30M in Materials Science (30 federal grants, 14 NSF) and $19M (22 federal grants, 13 NSF) in other departments (Chemistry, Physics, Limnology, Soils, Pharmacy). Projects supported by NSF-EAR include many studies of deep-crustal processes: petrogenesis of magmatic systems, causes of explosive volcanic eruptions, conditions of granulite and of eclogite facies metamorphism, the genesis of economic deposits of metals and fossil fuels, tectonics of major shear zones, Hadean zircons, and meteoritics. Studies of near surface processes include: astrobiology, paleoclimatology (biogenic carbonates and foraminifera, speleothems), diagenesis and basin evolution, cementation in shallow fault zones, and nano-minerals. In Materials Science, projects include synthesis of new materials and advanced processing methods for materials for new electronic, magnetic and optical devices, renewable energy materials/processes, and high temperature structures. The capabilities of the UW-Madison EMP complement and are essential to the operation of WiscSIMS, an NSF-supported National Facility at UW-Madison for in situ analysis of stable isotope geochemistry. The ability of the EMP Lab at UW-Madison to build on its 47-year record of education, service and research in the public interest will be enhanced by acquisition of a modern electron microprobe. PI and Lab Director Dr. John Fournelle has for over 20 years contributed to advancing the science of electron microprobe analysis. The research that will be facilitated by a modern EMP will address many problems of societal concern, including: paleoclimate, development of natural resources (oil, gas, water, metals, strategic elements), volcanic hazards, environmental remediation, and development of new materials with desirable properties such as electronics, refractories, and ceramics. Research conducted on our current instrument has resulted in 650 publications. Learning to use the electron microprobe and to evaluate data is a key component to the educational development and maturing of students. Over the past 20 years, more than 200 graduate students in Geoscience and other STEM disciplines critical to our national economic competitiveness, including 66 women (49 in Geoscience) have used our EMP Lab for research. Geoscience faculty from smaller Wisconsin colleges bring their undergraduates to the Madison lab for their first experience running a microbeam analytical instrument.

威斯康星大学麦迪逊分校正在购买现代电子微探针（EMP），以取代21岁的磨损仪器。它是威斯康星州唯一的EMP，并且由许多NSF资助的研究人员大量使用。没有其他技术匹配主要对小级别元素的原位化学分析的多功能性或准确性。它是无损的，允许化学数据与其他形式的分析相关。现代EMP还将具有新的功能，包括增强成像和更强烈的LAB6源，该源将允许亚微米分析。 The new capabilities and enhanced reliability of a modern EMP are required by over 116 currently funded federal (74 NSF) grants, valued at $18M in Geoscience (64 federal grants, 47 NSF), $30M in Materials Science (30 federal grants, 14 NSF) and $19M (22 federal grants, 13 NSF) in other departments (Chemistry, Physics, Limnology, Soils, Pharmacy). NSF-EAR支持的项目包括许多有关深壳过程的研究：岩浆系统的岩石发生，爆炸性火山喷发的原因，颗粒状条件和石晶相变质，金属的经济沉积物的形成，金属的经济沉积物和化石燃料的经济沉积物，主要的Shear Zones的构造，大型剪切Zircons，以及大量的氧化锌子以及METEEORITIC。对近表面过程的研究包括：天体生物学，古气候学（生物碳酸盐和有孔虫，斑speleothems），成岩作用和盆地进化，浅层断层区域的胶结和纳米矿物质。在材料科学中，项目包括新材料的合成以及用于新电子，磁性和光学设备的材料，可再生能源材料/过程以及高温结构的高级加工方法。 UW-Madison EMP补体的功能对于Wiscsims的运作至关重要，Wiscsims是UW-Madison的NSF支持的国家设施，用于对稳定同位素地球化学的原位分析。 UW-Madison的EMP实验室以其47年的教育，服务和研究记录为公共利益的能力将通过获取现代电子微探针来增强。 PI兼实验室主任John Fournelle博士已有20多年的历史了，促进了Electron Microprobe分析的科学。现代EMP将促进的研究将解决许多社会关注的问题，包括：古气候，自然资源的发展（石油，天然气，水，金属，战略要素），火山危害，环境补救以及具有可取特性的新材料，例如电子产品，折磨和陶器。对我们当前工具进行的研究导致了650份出版物。学习使用电子微探测并评估数据是学生发展和成熟的关键组成部分。在过去的20年中，有200多名地球科学领域的研究生和其他对我们国家经济竞争力至关重要的STEM学科，其中包括66名妇女（49位地球科学）使用我们的EMP实验室进行研究。来自威斯康星州较小学院的地球科学教师将他们的本科生带到麦迪逊实验室，以首次运行Microbeam Analytical仪器的经验。