Aquisition and Development of a Thermal Ionization Mass Spectrometer Facility at Boston University

波士顿大学热电离质谱仪设施的购置和开发

• 批准号: 0521266
• 负责人: Ethan Baxter
• 金额: --
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-15 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0521266&HistoricalAwards=false
• 关键词: Aquisition; Development; Thermal; Ionization; Mass

EAR-0521266BaxterThis award from the Major Research and Instrumentation Program (MRI) will support the development of a new Thermal Ionization Mass Spectrometry (TIMS) Facility in the Department of Earth Sciences at Boston University. In addition to the TIMS, this facility will include a MicroMill sampling device for collecting spatially-resolved material at the 10-100 micron scale for subsequent chemical preparation and TIMS analysis. The new TIMS/MicroMill Facility gives the Department - and external users - the capability to measure isotope ratios (e.g. Sr, Nd, Ca, Pb) on a wide variety of geological samples at high spatial resolution and high precision. The most recent generation of TIMS is capable of analytical precision not previously obtainable, including when sample size is limited. Modern geoscience research in igneous & metamorphic petrology, weathering & surface processes, and oceanography & paleoclimate - all research strengths of the four PIs - often requires the reconstruction of past geologic events or conditions with fine geochemical and geochronological spatial and temporal resolution only possible by pushing the limits of precision and sample size with the TIMS. The new BU TIMS/MicroMill Facility will be dedicated to pushing those limits. This open regional TIMS Facility will serve the research needs of the four PI's on this proposal, others in the Department and University, and other geoscientists in the region. Our external user management plan providing training for long-term student users, encouraging collaborative research with BU PI's particularly where specialized analysis is needed, and including an appropriate recharge rate, will ensure the integrity of the lab facilities while always providing the best quality isotopic data to BU and external users. The Facility will benefit a wide spectrum of graduate and undergraduate research at BU and in the region.

主要研究和仪器计划（MRI）的这一奖项将支持波士顿大学地球科学系开发新的热电离质谱（TIMS）设施。 除了TIMS，该设施还将包括一个MicroMill取样装置，用于收集10-100微米尺度的空间分辨材料，用于随后的化学制备和TIMS分析。 新的TIMS/MicroMill设施使该部和外部用户能够以高空间分辨率和高精度测量各种地质样品的同位素比率（例如Sr、Nd、Ca、Pb）。 最新一代的TIMS能够达到以前无法获得的分析精度，包括当样本量有限时。 在火成岩变质岩石学、风化表面过程和海洋学古气候方面的现代地球科学研究--四个PI的所有研究优势--往往需要用精细的地球化学和年代学空间和时间分辨率重建过去的地质事件或条件，只有通过推动TIMS的精度和样本量的极限才有可能。 新的BU TIMS/MicroMill工厂将致力于推动这些限制。 这个开放的区域TIMS设施将服务于四个PI的研究需求，在这个建议，其他部门和大学，以及其他地球科学家在该地区。我们的外部用户管理计划为长期学生用户提供培训，鼓励与BU PI的合作研究，特别是需要专业分析的地方，并包括适当的充电率，这将确保实验室设施的完整性，同时始终为BU和外部用户提供最优质的同位素数据。 该设施将有利于在BU和该地区的研究生和本科生的研究范围广泛。