Facility Support: The WiscSIMS National Ion Microprobe

该奖项将重新资助WiscSIMS作为稳定同位素地球化学国家设施。自2008年以来，该实验室一直由美国国家科学基金会作为国家设施资助。WiscSIMS优化了IMS-1280大半径，多收集器离子探针，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。超过50%的仪器光束时间用于地球科学和nsf支持的项目。到目前为止，已有来自60所不同大学和研究机构的206多名科学家与WiscSIMS合作。在威斯科姆斯进行了广泛的研究。三个最常见的区域是火成岩和变质岩地球化学；宇宙化学和天体生物学；低温地球化学与古气候学。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。在未来三年的资助周期内，在wissims进行的研究将有助于解决长期存在的古气候问题，特别是在快速气候变化的代理记录方面，传统技术无法解决短时间内的问题。该项目的更广泛影响包括稳定同位素地球化学在社会关注问题上的新应用；公共教育;本科至博士后阶段的SIMS/地球化学培训，包括代表性不足的群体。在过去的三年中，45名学生（其中20名女性）在论文研究中使用了wissims。WiscSIMS在2013年举办了高分辨率古气候研讨会，并计划在2015年举办高分辨率古气候研讨会。

This award will renew funding of WiscSIMS as a National Facility for Stable Isotope Geochemistry. The lab has been funded by NSF as a National Facility since 2008. WiscSIMS has optimized an IMS-1280 large-radius, multi-collector ion microprobe 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. Over 50% of instrument beam-time has been devoted to earth science and NSF-supported projects. Thus far, over 206 scientists have worked with WiscSIMS from 60 different universities and research institutes. A wide range of research is conducted at WiscSIMS. The three most common areas are Igneous and Metamorphic Petrology & Geochemistry; Cosmochemistry & Astrobiology; and Low Temperature Geochemistry & Paleoclimatology. The applications of these new in situ capabilities are potentially transformative in many areas of geochemistry. During the next three-year funding cycle, research to be conducted at WiscSIMS will help resolve long-standing paleoclimate questions, especially in proxy records of rapid climate change where conventional techniques cannot resolve short time periods. The broader impacts of this project include new applications of stable isotope geochemistry to problems of societal concern; public education; and SIMS/geochemistry training at undergraduate to post-doc level, including under-represented groups. Forty-five students, including 20 women, used WiscSIMS in thesis research during the past 3 years. WiscSIMS hosted the Hi-Res Paleoclimate Workshop in 2013 and proposes to host Hi-Res2015.