Facility Support: The WiscSIMS National Ion Microprobe

该奖项为WiscSIMS作为稳定同位素地球化学的国家多用户设施提供了新的资金。实验室稳定同位素和微量元素微量分析的新原位能力的应用可能在地球科学的许多领域具有变革性，并对包括能源和矿产资源开发在内的社会关注主题具有重要意义；火山危险性评价；记录气候变化和古气候；以及环境整治。技术转移是本实验室的一项重要活动。WiscSIMS已经发表了许多关于新技术和科学发展的同行评议报告，这些新技术和科学发展正在被私营部门应用，使更大的研究界能够研究我们的星球是如何运作的。WiscSIMS的研究还包括许多纯粹由求知欲驱动的研究，包括太阳系的起源、生命的起源和地球的历史。教育被强调为该设施日常运作的一部分，涉及高中学生和威斯康星大学人民计划的科学教师，有色人种和低收入学生的大学前管道，以及美国宇航局天体生物学研究所。威斯康星大学麦迪逊分校地质博物馆的工作人员经常与媒体沟通，并为网站、开放日和展览做出贡献。威斯康星大学麦迪逊分校地质博物馆每年有4万名游客。此外，我们还开设稳定同位素地球化学和环境同位素的常规课程，并培养本科生，研究生和博士后。在过去的6年里，WiscSIMS培训了63名学生，其中包括33名女性和4名少数民族。WiscSIMS优化了IMS-1280大半径，多收集器离子微探针（SIMS），用于分析稳定同位素（包括Li， C， N， O, Mg, Si， S， Ca和Fe）。WiscSIMS开发了独特的能力，可以精确和准确地分析从小到超小的同位素比率。从显微镜支架上原位分析小斑点（1-10微米）的能力允许将数据与成像和其他形式的分析结合起来。这些新的原位能力的应用在地球化学的许多领域具有潜在的变革性。同位素变化的范围和模式最终可以从以前通过分析散装或粉末状样品（如锆石、微化石、矿物包裹体、石英生长体和碳酸盐）而均匀化的小物体中确定。WiscSIMS使三个最常见的研究领域成为可能：火成岩和变质岩石学和地球化学；宇宙化学和天体生物学；低温地球化学与古气候学。超过50%的仪器光束时间用于地球科学和nsf支持的项目。nsf资助的项目获得最高优先级和减少费用的时间表。客人不需要有以前的SIMS经验。迄今为止，已有来自65所不同大学和研究机构的300多名科学家与wissims合作。

This award renews funding of WiscSIMS as a national, multi-user facility for stable isotope geochemistry. Applications of the lab's new in situ capabilities for microanalysis of stable isotopes and trace elements are potentially transformative in many areas of earth sciences and have importance for subjects of societal concern including development of energy and mineral resources; evaluating volcanic hazards; documenting climate change and paleoclimate; and environmental remediation. Technology transfer is an important activity of this lab. WiscSIMS has published many peer-reviewed reports of new technological and scientific developments that are being applied by the private sector that enable the larger research community to study how our planet works. Research at WiscSIMS also includes many studies driven solely by intellectual curiosity, including the genesis of the solar system, the origin of life, and the history of Earth. Education is emphasized as part of the routine operation of this facility, involving high school students and science teachers with the Univ. of Wisconsin People Program, a pre-college pipeline for students of color and low-income students, and the NASA Astrobiology Institute. WiscSIMS staff often communicate with the media, and contribute to web sites, open houses, and exhibitions at the UW-Madison Geology Museum, which has 40,000 visitors/year. In addition, we teach regular courses in Stable Isotope Geochemistry and Environmental Isotopes, and we train undergraduates, graduate students and post-doctoral fellows. In the past 6 years, WiscSIMS trained 63 students including 33 women and four minorities. WiscSIMS has optimized an IMS-1280 large-radius, multi-collector ion microprobe (SIMS) for analysis of stable isotopes (including Li, C, N, O, Mg, Si, S, Ca, and Fe). WiscSIMS has developed unique capabilities for precise and accurate analysis of isotope ratios from small to ultra small spots. The ability to analyze small spots (1-10 micron) in situ from microscope mounts allows data to be put in context with imaging and other forms of analysis. The applications of these new in situ capabilities are potentially transformative in many areas of geochemistry. The range and pattern of isotope variation can finally be determined from small objects that were formerly homogenized by analysis of bulk or powdered samples such as zircons, microfossils, mineral inclusions, quartz overgrowths, and carbonates. The three most common areas of research that are enabled by WiscSIMS are Igneous and Metamorphic Petrology & Geochemistry; Cosmochemistry & Astrobiology; and Low Temperature Geochemistry & Paleoclimatology. Over 50% of instrument beam-time has been devoted to earth science and NSF-supported projects. NSF-funded projects receive the highest priority and a reduced-fee schedule. It is not necessary for guests to have previous SIMS experience. Thus far, over 300 scientists have worked with WiscSIMS from 65 different universities and research institutes.