Upgrade of the Duke University Electron Microprobe

杜克大学电子显微镜升级

• 批准号: 1028271
• 负责人: A. Boudreau
• 金额: $ 1.18万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1028271&HistoricalAwards=false
• 关键词: Upgrade; Duke; University; Electron; Microprobe

1028271BoudreauThis award provides $11,840 in NSF funding over 12 months to acquire an EDS spectrometer which uses Silicon Drift Detector (SSD) technology. The current detector uses an older technology which makes analyses very slow relative to the requested detector and carries additional costs for consumable liquid nitrogen. Duke and UNC will support half the unit cost. The new detector will be used for Earth and materials sciences at UNC and Duke. Science to be undertaken with the new detector will involve study of volatiles and volatile-rich fluids during interstitial fluid crystallization, the textural evolution of layered intrusions, plutonic petrogenesis and growth, detrital zircon transport, mineralogy, oceanic basalt geochemistry, and paleoclimatology and paleoceanography. The facility supports a wide range of petrographic, geochemical and environmental research interests at Duke and the UNC, as well as other colleges and universities in North Carolina. The new detector will be incorporated into courses to both undergraduate and graduate students in geosciences. Two non-working spare instruments are on hand for obtaining outdated parts. The instrument will be maintained by the PI. The PI will also train new users. The upgraded instrument is not expected to require any more support than currently needed. ***

1028271Boudreau 该奖项在 12 个月内提供 11,840 美元的 NSF 资金，用于购买使用硅漂移探测器 (SSD) 技术的 EDS 光谱仪。目前的检测器使用较旧的技术，与所需的检测器相比，分析速度非常慢，并且消耗液氮会产生额外的成本。杜克大学和北卡罗来纳大学将支持一半的单位成本。新探测器将用于北卡罗来纳大学和杜克大学的地球和材料科学领域。新探测器将进行的科学研究将涉及间质流体结晶过程中的挥发物和富含挥发物的流体、层状侵入体的结构演化、深成岩石成因和生长、碎屑锆石输运、矿物学、海洋玄武岩地球化学、古气候学和古海洋学。该设施支持杜克大学和北卡罗来纳大学以及北卡罗来纳州其他学院和大学的广泛的岩石学、地球化学和环境研究兴趣。新探测器将被纳入地球科学本科生和研究生的课程中。手头有两台无法使用的备用仪器，用于获取过时的零件。该仪器将由 PI 维护。 PI 还将培训新用户。升级后的仪器预计不需要比当前需要更多的支持。 ***