MRI: Acquisition of an Electron Microprobe at Syracuse University: a Central New York Regional User Facility

1625835年，这项重大研究仪器（MRI）资助支持购买一个电子微探针（EMP），配备五个波长色散光谱仪（WDS），一个能量色散光谱仪（EDS），一个阴极发光（CL）显微镜和一个LaB 6电子源，以允许地质和合成材料的微米级成分映射。 将包括一台具有分析能力的新电子显微镜，这将促进固体地球科学、材料科学和考古学方面的研究和研究培训。 锡拉丘兹的一个新的EMP设施将作为纽约州中部固体天然和合成材料微化学表征的区域设施，支持十几个学术机构的许多教师和学生的需求。 这种支持与NSF的使命是一致的，即促进科学进步和促进国家健康，繁荣和福利，因为电子显微镜对于促进对地球材料起源的理解非常重要，特别是在这种情况下，支持金属医疗植入物腐蚀的调查研究。 因此，该仪器支持的研究立即服务于美国老龄化人口的社会利益。 该仪器还将支持下一代科学工作人员的培训，使他们掌握最先进的材料表征方法。特定的研究应用，需要一个电子探针，以确定微米-矿物和合成材料中微量元素的尺度分布将包括岩石和矿物中化学平衡、扩散和反应动力学的研究，并将其应用于开发新的地质温压计，以促进对中深部地壳矿物组合在折返变质作用中的压力和温度条件的了解。岩石形成的研究，岩浆过程的研究，微量元素的碎屑矿物相的调查，以阐明出处，金属医疗植入物的腐蚀行为的应用研究，地质法医学，和文物出处的考古调查。 ***

1625835ThomasThis Major Research Instrumentation (MRI) grant supports acquisition of a an electron microprobe (EMP) equipped with five wavelength dispersive spectrometers (WDS), an energy dispersive spectrometer (EDS), a cathodoluminescence (CL) microscope and a LaB6 electron source to permit micron scale compositional mapping of geologic and synthesized materials. A new electron microscope with the analytical capabilities to be included will foster research and research training in the solid Earth sciences, materials science and archaeology. A new EMP facility at Syracuse will serve as a regional facility for microchemcial characterization of solid natural and synthetic materials in central New York State, supporting the needs of many faculty and students at over a dozen academic institutions. This support is congruent with NSFs mission of promoting the progress of science and advancing the national health, prosperity and welfare given the importance of electron microscopy for advancing understanding of the genesis of Earth materials and in this case in particular, supporting investigator studies of the corrosion of metallic medical implants. Thus the research supported with this instrument immediately serves the societal interests of an aging U.S. population. The instrument will also support the training of a next generation scientific workforce with skills in state-of-the-art methods of materials characterization. Specific research applications that require an electron probe for determining the micron-scale distribution of trace element in minerals and synthesized materials will include studies of chemical equilibrium and diffusion and reaction kinetics in rocks and minerals with applications to the development of new geothermobarometers that promise to advance understanding of the pressure and temperature conditions at which mid and deep crustal mineral assemblages in exhumed metamorphic rocks formed, studies of magmatic processes, trace element investigations of detrital mineral phases to elucidate provenance, applied studies of the corrosion behavior of metallic medical implants, geoforensics, and archaeological investigations of artifact provenance. ***