Upgrade of the Duke University Electron Microprobe

1028271Boudreau该奖项在12个月内为NSF提供了11，840美元的资金，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，这使得分析相对于所要求的检测器非常缓慢，并且消耗液氮带来额外的成本。杜克和杜克将承担一半的单位成本。新的探测器将用于地球和材料科学在卡尔加里和杜克。使用新探测器进行的科学研究将涉及间隙流体结晶过程中挥发物和富含挥发物的流体的研究、层状侵入体的结构演化、深成岩石成因和生长、碎屑锆石迁移、矿物学、海洋玄武岩地球化学以及古气候学和古海洋学。该设施支持杜克和麻省理工学院以及北卡罗来纳州的其他学院和大学的广泛的岩相学、地球化学和环境研究兴趣。新探测器将纳入地球科学本科生和研究生的课程中。手头有两个不工作的备用仪器，可用于购买过时的零件。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目前更多的支持。***

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 Two non-working spare instruments are on hand for obtaining outdated parts.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. ***