Acquisition of a Thermal Ionization Mass Spectrometer

购买热电离质谱仪

• 批准号: 0947220
• 负责人: Alan Brandon
• 金额: $ 17.91万
• 依托单位: University of Houston
• 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: 2011-02-15 至 2013-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0947220&HistoricalAwards=false
• 关键词: Acquisition; Thermal; Ionization; Mass; Spectrometer

0947220BrandonThis award provides $179,107 in NSF funding over 24 months to support partial acquisition of a Thermal Ionization Mass Spectrometer (TIMS). The instrument will be installed in recently-renovated space along with a multicollector inductively coupled plasma mass spectrometer. The TIMS will be used for high-precision Neodymium isotope measurements in chondrites, early Earth, and planetary materials. These studies will be used to better understand Earth's early fractionation and bulk Sm/Nd in the silicate Earth. High precision Osmium isotope measurements will be made in mantle and igneous rocks to better understand early Earth Reniun/Osmium and Platinum/Osmium ratios in the Earth's interior. Re-Os isotope systematics will be used as a precise chronometer to elucidate sediment formation and hydrocarbon migration and will be applied to mantle and igneous rocks to determine the timing of Earth's interior geochemical processes. Additionally, Sm-Nd isotope chronology will be assessed in metamorphic rocks. The TIMS will also be applied to U-Pb isotope chronology. The new instrument will support students through faculty mentoring, coursework and internship programs. Additionally, the research efforts will provide hands-on use for graduate students and post-docs. The instrument will interface with the Houston Alliance for Minority Participation Project funded by NSF. Collaborations within UH and with Rice and NASA will also be supported. UH will provide a new renovated laboratory with clean lab capabilities for this effort. UH will also support half of a laboratory technician salary. ***

0947220 Brandon该奖项在24个月内为NSF提供了179，107美元的资金，以支持部分购买热电离质谱仪（TIMS）。该仪器将与多接收器电感耦合等离子体质谱仪一起沿着安装在最近翻修的空间中。TIMS将被用于高精度的NeoH 2 O3同位素测量，包括陨石、早期地球和行星物质。这些研究将用于更好地了解地球的早期分馏和散装Sm/Nd在硅酸盐地球。高精度的锇同位素测量将在地幔和火成岩中进行，以更好地了解早期地球内部的铼/锇和铂/锇比值。Re-Os同位素系统学将被用作精确的计时器，以阐明沉积物的形成和烃类的迁移，并将被应用于地幔和火成岩，以确定地球内部地球化学过程的时间。此外，Sm-Nd同位素年代学将在变质岩中进行评估。TIMS还将应用于U-Pb同位素年代学。新的工具将通过教师指导，课程和实习计划支持学生。此外，研究工作将为研究生和博士后提供实践。该仪器将与NSF资助的休斯顿少数民族参与项目联盟对接。UH内部以及与赖斯和NASA的合作也将得到支持。呃将提供一个新的翻新实验室与清洁实验室的能力，为这项工作。UH还将支持实验室技术人员工资的一半。***