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.

EAR-0521266Baxter 这项来自重大研究和仪器计划 (MRI) 的奖项将支持波士顿大学地球科学系新的热电离质谱 (TIMS) 设施的开发。 除了 TIMS 之外，该设施还将包括一个 MicroMill 采样装置，用于收集 10-100 微米尺度的空间分辨材料，用于后续化学制备和 TIMS 分析。 新的 TIMS/MicroMill 设施使该部门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（例如 Sr、Nd、Ca、Pb）。 最新一代的 TIMS 能够实现以前无法达到的分析精度，包括在样本量有限的情况下。 现代地球科学研究涉及火成岩和变质岩石学、风化和地表过程以及海洋学和古气候——四个 PI 的所有研究优势——通常需要以精细的地球化学和地质年代学空间和时间分辨率重建过去的地质事件或条件，只有通过推动才能实现TIMS 的精度和样本大小的限制。 新的 BU TIMS/MicroMill 工厂将致力于突破这些限制。 这个开放的区域 TIMS 设施将满足该提案的四位 PI、部门和大学的其他人员以及该地区其他地球科学家的研究需求。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，特别是在需要专业分析的情况下，并包括适当的充电率，将确保实验室设施的完整性，同时始终提供最优质的同位素数据BU 和外部用户。 该设施将使波士顿大学和该地区的广泛研究生和本科生研究受益。