Facility Support: The Arizona State University SIMS Laboratories

该奖项将继续支持亚利桑那州州立大学二次离子质谱仪（西姆斯）设施。亚利桑那州立大学长期以来一直是西姆斯研究和开发的领导者，并以跨学科合作而闻名;更新这个国家设施使这个小组能够继续与更广泛的地球科学界分享他们的专业知识。 作为该设施年度公共宣传工作的一部分，提供了一个西姆斯研讨会，吸引了约15名参观者（主要是学生，女性占与会者的约50%），参加为期3天的仪器沉浸式讲座和样品制备和分析的实践经验。在这项建议中的五名高级人员中，三名是妇女，两名是职业生涯初期的科学家。该设施将合成有关的化学和同位素标准物质并确定其特性，然后将其分发给西姆斯的其他实验室，以加强科学了解和合作。名义上无水矿物中的H分析，硅酸盐矿物和玻璃中的Li和B浓度和同位素测量，硅酸盐玻璃中的氢、氘和碳，矿物和火山玻璃的F含量。然而，许多用户已经成功地获得了痕量丰度的重元素分析，如Rb到Nb、REE、Hf、Th和U。将继续强调点分析和深度剖析研究。在将NanoSIMS添加到该设施中时，它将成为第一个提供NanoSIMS用于分析地球材料的开放设施。更新的资金将允许NanoSIMS的新应用到以前在地球科学中未开发的应用中，例如在亚微米尺度上表征微量元素和同位素浓度的分区，以阐明地质事件的时间。新技术将根据他们与参观者的互动开发，因为设施科学家努力提供推进科学所需的化学数据。

This award will renew support for the Arizona State University Secondary Ion Mass Spectrometer (SIMS) Facility. Arizona State University has long been a leader in SIMS research and development and is known for cross-disciplinary collaborations; renewing this national facility allows this group to continue to share their expertise with the broader Earth Science community. As part of the annual public outreach efforts of the facility, a SIMS workshop is offered that attracts ~15 visitors (dominantly students with women representing ~50% of attendees) for an intense, 3-day immersion in the instrumentation with lectures and hands-on practical experience in sample preparation and analysis. Of the five senior personnel in this proposal, three are women, and two are early-career scientists. The facility will synthesize and characterize relevant chemical and isotopic standard materials, which will be disseminated to other SIMS laboratories to enhance scientific understanding and collaboration.The facility will be used primarily for light element geochemistry: analysis of H in nominally anhydrous minerals, Li and B concentration and isotope measurements in a range of silicate minerals and glass, hydrogen, deuterium, and carbon in silicate glasses, and F contents of minerals and volcanic glass. However, many users have successfully obtained analyses for heavier elements in trace abundance, such as Rb to Nb, REE, Hf, Th, and U. Point analyses and depth-profiling studies will continue to be emphasized. In adding the NanoSIMS to the facility, it will become the first open facility offering access to NanoSIMS for the analyses of terrestrial materials. Renewed funding will allow novel applications of NanoSIMS to previously under-explored applications in the Earth Sciences, such as characterizing zoning in trace elements and isotopic concentrations at the sub-micron scale to elucidate the timing of geologic events. New techniques will be developed based on their interaction with visitors as the facility scientists strive to provide the chemical data needed to advance their science.