Acquisition of a tabletop SEM/EDS system at the University of Louisiana at Lafayette

路易斯安那大学拉斐特分校购置桌面 SEM/EDS 系统

• 批准号: 2041040
• 负责人: Eric Ferre
• 金额: $ 16.29万
• 依托单位: University of Louisiana at Lafayette
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-06-01 至 2023-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2041040&HistoricalAwards=false
• 关键词: Acquisition; tabletop; SEM; EDS; system

This Instrumentation and Facilities award supports the School of Geosciences at University of Louisiana at Lafayette with the acquisition of a tabletop analytical Scanning Electron Microscope [SEM] to advance on-campus undergraduate/graduate education and support research in STEAM [Science, Technology, Engineering, Art, Mathematics] disciplines. Thanks to its electron beam, SEM has distinct inherent advantages over optical microscopy: larger magnification, sharper images and chemical identification. A broad range of materials including wood, bones, fossils, rocks and minerals can be imaged and analyzed within a few minutes. The instrument will be used for advanced research in environmental studies, petroleum geology, and mining geology. The SEM will be remotely accessible through an internet connection, with an on-site operator, for demonstrations in classroom on campus and in secondary schools for science demonstrations. This connectivity will allow a large number of students from under-represented groups to participate in live exploration of materials. The best, high resolution images will be printed in large format to be displayed as part of science & art exhibitions on campus.The SEM instrument will allow the main investigators and their graduate students to acquire high quality digital imagery and will promote interactive exploration of the samples. The new, state of the art tabletop SEM, includes a modern energy dispersive (EDS) detector that provides rapid quantitative chemical analyses. This instrument will support the new interdisciplinary PhD program in Earth and Energy Sciences at UL Lafayette. The SEM+EDS system and its new microanalytical capabilities will enable scientists to conduct research on six targeted projects: 1) the microstructural record of co-seismic deformation in fault rock; 2) the roles of fluids in strain localization in the middle of the continental crust; 3) the record of climate/carbon cycle change in fossil wood; 4) the chemical record of climate change in precipitated carbonates in lakes; 5) life and death of methane-oxidizing microbial communities in relation with methane emissions; 6) the mineralogical record, in central Louisiana, of the asteroid impact that killed the dinosaurs 65 million years ago.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.

该仪器和设施奖支持路易斯安那大学拉斐特分校地球科学学院收购桌面分析扫描电子显微镜[SEM]，以推进校园本科/研究生教育，并支持STEAM [科学，技术，工程，艺术，数学]学科的研究。由于其电子束，SEM与光学显微镜相比具有明显的固有优势：更大的放大倍数，更清晰的图像和化学识别。包括木材、骨骼、化石、岩石和矿物在内的各种材料都可以在几分钟内成像和分析。该仪器将用于环境研究、石油地质学和采矿地质学的高级研究。该系统将通过互联网连接，由现场操作员远程访问，用于校园教室的演示和中学的科学演示。这种连通性将使大量来自代表性不足的群体的学生参与材料的现场探索。最好的，高分辨率的图像将被打印成大格式，作为校园科学艺术展览的一部分。SEM仪器将使主要研究人员和他们的研究生能够获得高质量的数字图像，并将促进样品的互动探索。最先进的新型台式SEM包括一个现代化的能量色散（EDS）检测器，可提供快速定量化学分析。该仪器将支持UL Lafayette的地球与能源科学新跨学科博士课程。SEM+EDS系统及其新的微观分析功能将使科学家能够对六个目标项目进行研究：1）断层岩同震变形的微观结构记录; 2）流体在应变中的作用地壳中部; 3）化石木材中气候/碳循环变化的记录; 4）湖泊沉积碳酸盐中气候变化的化学记录; 5）与甲烷排放有关的甲烷氧化微生物群落的生与死; 6）路易斯安那州中部6500万年前小行星撞击导致恐龙灭绝的矿物学记录。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。