Facility Support: The Arizona State University SIMS Laboratories

设施支持：亚利桑那州立大学 SIMS 实验室

• 批准号: 1352996
• 负责人: Richard Hervig
• 金额: $ 104.99万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-01-01 至 2019-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1352996&HistoricalAwards=false
• 关键词: Facility; Support; Arizona; State; University

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.

这一奖项将再次支持亚利桑那州立大学二次离子质谱仪(SIMS)设施。亚利桑那州立大学长期以来一直是SIMS研究和开发的领导者，并以跨学科合作而闻名；更新这一国家设施使该组织能够继续与更广泛的地球科学界分享他们的专业知识。作为该设施年度公众宣传工作的一部分，提供了SIMS研讨会，吸引了约15名参观者(主要是学生，女性占参与者的50%)，通过讲课和样品制备和分析方面的实践经验，在仪器中进行为期3天的密集沉浸。在这项提议中的五名高级人员中，三名是女性，两名是职业生涯早期的科学家。该设施将合成和表征相关的化学和同位素标准物质，并将传播到SIMS的其他实验室，以加强科学了解和合作。该设施将主要用于轻元素地球化学：名义上无水矿物中的H的分析，一系列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、氚和碳，以及矿物和火山玻璃中的F含量。然而，许多用户已经成功地获得了对痕量丰度中较重元素的分析，如Rb到Nb、REE、Hf、Th和U，将继续强调点分析和深度剖面研究。在将NanoSIMS添加到该设施中后，它将成为第一个开放的设施，可以使用NanoSIMS进行陆地材料的分析。新的资金将使NanoSIMS能够以新的方式应用于以前在地球科学中开发不足的应用，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。随着设施科学家努力提供推进他们的科学所需的化学数据，将根据他们与参观者的互动开发新技术。