MRI: Acquisition of a Thermal Ionization Mass Spectrometer (TIMS) to strengthen collaborative inter-University programs in isotope geochemistry

MRI：购买热电离质谱仪 (TIMS) 以加强同位素地球化学方面的大学间合作项目

• 批准号: 1126884
• 负责人: Brian Kennedy
• 金额: $ 72.68万
• 依托单位: Regents of the University of Idaho
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2017-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1126884&HistoricalAwards=false
• 关键词: MRI; Acquisition; Thermal; Ionization; Mass

Chemical and isotopic signatures allow us to age rocks, follow the fate and transport of nutrients, reconstruct climate trends and study the migratory behaviors of animals. As the need for high precision isotopic techniques in the geological, ecological and climate sciences increases, it is critical to have both the research infrastructure to address regional research needs as well as the ability to train students on state-of-the-art equipment. This proposal is for the acquisition of a Multi-Collector Thermal Ionization Mass Spectrometer (MC-TIMS) at the University of Idaho. This major acquisition is intended to foster an interdisciplinary regional center for isotope geochemistry and environmental tracers, the Palouse Biogeosciences Collaborative (PBC), which would support a wide array of ecological, biogeochemical and geological studies and would fill a critical research and training need within the 3 partnering universities; the University of Idaho (UI), Washington State University (WSU) and Eastern Washington University (EWU). The methodological development and application of environmental and isotopic tracers is an existing regional strength as evidenced by several interdisciplinary research groups focused on isotopic analyses of large-scale ecological, atmospheric, geologic, and hydrologic phenomena. Investment in the new MC-TIMS technology will enable us to build on this existing strength while we strategically foster research programs that expand jointly across the three campuses. A Thermo Fisher Scientific MC-TIMS, the Triton Plus along with the requested New Wave Micromill will provide the capacity for high-precision and high resolution sampling for isotopic analyses of geologic and biological materials. The requested instrument will enable researchers to quantify the isotopes of solid-state, low-ionization elements such as Nd, Pb, Ca, and Sr to understand origins, fates and transport of materials from systems across spatial scales to better understand the life history migratory salmon, the provenance of metamorphic belts, the origin and evolution of magmas, and the source of atmospheric pollutants. Examples of collaborative, interdisciplinary efforts that will be supported include employing geochemical techniques and geologic principles to understand the diversity and evolution of salmon migration in the Columbia River.Three major integrated elements of this funded award include: 1) a Multi-collector Thermal Ionization Mass Spectrometer (TIMS) designed specifically for the high precision analysis of radiogenic and cosmogenic isotope ratios; 2) a Retarding Potential Quadropole (RPQ) Lens, which provides a selective filter for ions that are in high abundance and influence the resolution of neighboring ions; and 3) a New-Wave Micromill for high spatial resolution microsampling of solid materials such as melt inclusions, volcanic crystals, and fish otoliths or earstones. Funding will complement existing facilities at UI and WSU, establishing a powerful regional consortium for training and engagement of isotopic and environmental tracers. The acquisition of a MC-TIMS and emerging partnerships with new faculty at UI (Harpp) and young investigators at EWU (Nezat), will galvanize a concerted effort to 1) create an interdisciplinary program in biogeosciences that spans fields of ecology, biogeochemistry, and geologic sciences and 2) recruit female students into the field of isotope geochemistry. This critical mass of instrumentation and personnel will provide the tools and resources to offer comprehensive programs for training, outreach and engagement of undergraduates, graduate students, and post-doctoral researchers across the region. The collaborators propose a new, unique set of integrated undergraduate and graduate courses as well as workshops to maximize the impact of the instrumentation. The University of Idaho has pledged match to ensure the immediate acquisition and continued support of the isotope facility, as the PBC directly aligns with signature areas of research excellence for UI. Broad support across the participating universities acknowledges the advantages of building a strong regional program in isotope geochemistry.

化学和同位素特征使我们能够确定岩石的年龄，跟踪营养物质的命运和运输，重建气候趋势并研究动物的迁徙行为。 随着地质、生态和气候科学对高精度同位素技术的需求增加，至关重要的是要有研究基础设施来满足区域研究需求，并有能力用最先进的设备培训学生。 该提案是为了在爱达荷州大学购置一台多接收器热电离质谱仪（MC-TIMS）。 这一重大收购的目的是建立一个同位素地球化学和环境示踪剂跨学科区域中心，即帕卢塞生物地球科学合作中心，该中心将支持广泛的生态、地球化学和地质研究，并将满足三所合作大学的关键研究和培训需求;爱达荷州大学（UI）、华盛顿州立大学（WSU）和东华盛顿大学（EWU）。环境和同位素示踪剂的方法开发和应用是现有的区域优势，这一点由几个跨学科的研究小组证明，这些研究小组专注于大规模生态，大气，地质和水文现象的同位素分析。 在新的MC-TIMS技术的投资将使我们能够建立在这一现有的优势，而我们战略性地促进研究计划，在三个校区联合扩展。赛默飞世尔科技公司的一台MC-TIMS、Triton Plus沿着以及所要求的New Wave Micromill将提供高精度和高分辨率取样的能力，用于地质和生物材料的同位素分析。所要求的仪器将使研究人员能够量化固态，低电离元素（如Nd，Pb，Ca和Sr）的同位素，以了解跨空间尺度系统的材料的起源，命运和运输，以更好地了解鲑鱼的生活史，变质带的起源，岩浆的起源和演化以及大气污染物的来源。 将得到支持的合作、跨学科努力的例子包括利用地球化学技术和地质原理来了解哥伦比亚河鲑鱼迁徙的多样性和演变。该资助奖的三个主要综合要素包括：1）专门为高精度分析放射性和宇宙成因同位素比率而设计的多收集器热电离质谱仪（TIMS）; 2）减速电位四极（RPQ）透镜，其为高丰度的离子提供选择性过滤器并影响相邻离子的分辨率;以及3）New-Wave微型研磨机，用于固体材料（例如熔融包裹体、火山晶体和鱼耳石或石）的高空间分辨率微取样。 资金将补充UI和WSU的现有设施，建立一个强大的同位素和环境示踪剂培训和参与区域联盟。 MC-TIMS的收购以及与UI（Harpp）新教师和EWU（Nezat）年轻研究人员的新兴合作伙伴关系，将激发共同努力，1）创建跨生态学，地球化学和地质科学领域的跨学科计划，2）招募女学生进入同位素地球化学领域。 仪器和人员的临界质量将提供工具和资源，为整个地区的本科生，研究生和博士后研究人员提供培训，推广和参与的综合计划。合作者提出了一套新的，独特的综合本科生和研究生课程以及研讨会，以最大限度地发挥仪器的影响。爱达荷州大学已承诺匹配，以确保立即收购并持续支持同位素设施，因为PBC直接与UI的标志性卓越研究领域保持一致。在参与大学的广泛支持承认建立一个强大的同位素地球化学区域计划的优势。