Collaborative Research: Research Infrastructure: CFS (Track III) Cosmogenic Nuclides in Earth Science Research: Allied facilities for sample preparation, analysis, and training

合作研究：研究基础设施：CFS（第三轨）地球科学研究中的宇宙成因核素：用于样品制备、分析和培训的联合设施

• 批准号: 2300560
• 负责人: Paul Bierman
• 金额: $ 146.05万
• 依托单位: University of Vermont & State Agricultural College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-07-15 至 2028-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2300560&HistoricalAwards=false
• 关键词: Collaborative; Research; Infrastructure; CFS; Track

Accelerator mass spectrometry (AMS) is a technique used to measure exceedingly rare materials produced as cosmic rays interact with rocks, soil, and Earth’s atmosphere. Using these data, scientists can determine the timing of events that have the potential to impact human endeavors. Some catastrophic changes, like floods or earthquakes, occur over short time-scales, while others, landscape erosion and the growth and demise of ice sheets, occur over longer time-scales, thousands to millions of years. These changes directly impact the welfare of human populations world-wide. This award renews funding for the Purdue Rare Isotope Measurement Laboratory (PRIME Lab) and the University of Vermont (UVM) Community Cosmogenic Facility. These two facilities will collaborate to produce a national, multi-user facility dedicated to the measurement of cosmogenic radionuclides using accelerator mass spectrometry. Doing so allows the combined facility to train students and researchers from dozens of universities within the US that do not have these capabilities or the funds to create them. At the University of Vermont, students learn how to perform the physical and chemical preparation of samples and then participate in the measurement of their samples on the PRIME Lab AMS. The interaction between students, faculty, and professional staff at PRIME Lab and University of Vermont facilitates interaction with geologists, chemists, and physicists, providing a unique opportunity to expand the educational opportunity beyond the focus of specific research projects. An essential component of this award is outreach to underrepresented communities, which will provide students hands-on opportunities to participate in geologic field work, laboratory instruction, and exposure to nuclear physics measurement techniques.The collaborative facility goals are to provide allied sample preparation, chemical extraction, and AMS measurements of cosmogenic and other long-lived radionuclides to the geoscience community. The first goal of this proposal is the continuance of this sample preparation and measurement capability for the NSF and geoscience community. PRIME Lab has provided AMS measurements for the geoscience community since the early 1990’s. PRIME Lab provides measurements of 10Be, 14C, 26Al, 36Cl, and 129I in terrestrial geologic samples. PRIME Lab routinely measures thousands of unknowns annually for researchers, including those in the NSF community, but the laboratory can neither keep pace with demand and adequately train enough “next-generation” cosmogenic nuclides researchers. Accordingly, a significant goal of this award is the establishment of additional sample preparation facilities for the geoscience community. The combination of the AMS measurement capabilities at PRIME Lab with the sample preparation facilities at UVM has value beyond just the combination of two facilities. Combining the groups enables us to explore techniques that allow the facility to streamline some of the processes, identify potential problems in the application of cosmogenic nuclides, allow for unique opportunities to train the next generation of cosmogenic nuclide researchers, and develop next-generation measurement techniques and applications.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

加速器质谱法（AMS）是一种用于测量宇宙射线与岩石，土壤和地球大气相互作用的极稀有材料的技术。使用这些数据，科学家可以确定有可能影响人类努力的事件的时机。一些灾难性的变化（例如地板或地震）发生在短时间内，而另一些灾难性的变化，景观侵蚀以及冰盖的生长和灭亡，发生在更长的时间尺度上，数千万到数百万年。这些变化直接影响了全球人口的福利。该奖项更新了Purdue稀有同位素测量实验室（Prime Lab）和佛蒙特大学（UVM）社区宇宙基础设施的资金。这两个设施将合作生产一个国家多用户设施，该设施专门用于使用加速器质谱法测量宇宙核素的测量。这样做可以使合并后的设施能够培训来自美国境内数十所大学的学生和研究人员，这些能力或没有这些能力的资金来创建它们。在佛蒙特大学，学生学习如何进行样品的物理和化学制备，然后在Prime Lab AMS上进行测量。 Prime Lab和佛蒙特大学的学生，教职员工和专业员工之间的互动促进了与地质学家，化学家和物理学家的互动，这为扩大教育机会扩大了特定研究项目的重点，提供了一个独特的机会。 An essential component of this award is outreach to underrepresented communities, which will provide students hands-on opportunities to participate in geologic field work, laboratory instructions, and exposure to nuclear physics measurement techniques.The collaborative facility goals are to provide allied sample preparation, chemical extraction, and AMS measurements of cosmogenic and other long-lived radiouclides to the geoscience community.该提案的第一个目标是对NSF和地球科学社区的样本准备和测量能力的持续。自1990年代初以来，Prime Lab就为地球科学社区提供了AMS测量。 Prime Lab提供了陆地地质样品中10BE，14C，26AL，36CL和129I的测量。 Prime Lab通常每年为包括NSF社区的研究人员每年测量成千上万的未知数，但实验室可以跟上需求的步伐，并充分训练足够的“下一代”宇宙核素研究人员。彼此之间，该奖项的重要目标是为地球科学社区建立其他样本准备设施。 Prime Lab的AMS测量功能与UVM样品制备设施的组合远远超出了两个设施的组合。 Combining the groups enables us to explore techniques that allow the facility to streamline some of the processes, identify potential problems in the application of cosmogenic nuclides, allow for unique opportunities to train the next generation of cosmogenic nuclide researchers, and develop next-generation measurement techniques and applications.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review 标准。