Acquisition of a New Generation Thermal Ionization Mass Spectrometer

购置新一代热电离质谱仪

• 批准号: 0130631
• 负责人: Mukul Sharma
• 金额: $ 26.8万
• 依托单位: Dartmouth College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-02-15 至 2006-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0130631&HistoricalAwards=false
• 关键词: Acquisition; New; Generation; Thermal; Ionization

EAR-0130631SharmaPartial funding is awarded towards the purchase of a new generation multi-collector Thermal Ionization Mass Spectrometer (TIMS), which permits ultra-high precision measurements of positively and negatively charged ion beams. The Dartmouth College will provide a match consisting of 50% of the expected cost of the instrument. The TIMS instrument will be the primary research tool in the new radiogenic isotope geochemistry laboratory in the Department of Earth Sciences. Ultra-high precision osmium and neodymium isotopic ratios will be determined using the new TIMS with the aim of addressing issues related to the origin and evolution of Earth and other planetary reservoirs. In addition, high sensitivity measurements of rhenium, osmium, iridium, samarium, neodymium, uranium, thorium, lead, rubidium, strontium, and iron isotopes will be performed. The new TIMS facility will provide an exciting new dimension to research at Dartmouth, complementing the extant strong research programs in the Department of Earth Sciences, which include K-Ar geochronology, organic geochemistry and paleoceanography, hydrogeochemistry of watersheds, climate change, landscape evolution, stratigraphy and basin analysis, hydrology and geomechanics, and tectonics. Many of these programs have a radiogenic isotope component and require access to a state-of-the-art TIMS facility. Additionally, other researchers and students at Dartmouth and in New England region will be able to use the new facility, resulting in further growth of research and education in geochemistry and in physical sciences.

授予EAR-0130631Sharmapartial资金，用于购买新一代的多核心热离子化质谱仪（TIMS），该电离质谱仪（TIMS）允许对带正电荷和负电荷的离子光束进行超高精确度测量。 达特茅斯学院将提供一场比赛，其中包括该乐器预期成本的50％。 TIMS仪器将成为地球科学系新的放射性同位素地球化学实验室的主要研究工具。将使用新的TIMS确定超高精度的oSmium和Neododim同位素比率，以解决与地球和其他行星储层的起源和进化有关的问题。此外，将执行rhenium，osmium，iridium，samarium，Neododmium，铀，铅，铅，铅，rubidium，延髓和铁同位素的高灵敏度测量。 The new TIMS facility will provide an exciting new dimension to research at Dartmouth, complementing the extant strong research programs in the Department of Earth Sciences, which include K-Ar geochronology, organic geochemistry and paleoceanography, hydrogeochemistry of watersheds, climate change, landscape evolution, stratigraphy and basin analysis, hydrology and geomechanics, and tectonics.这些程序中的许多程序具有放射性同位素组件，需要访问最先进的TIMS设施。此外，达特茅斯（Dartmouth）和新英格兰地区的其他研究人员和学生将能够使用新设施，从而进一步增长地球化学和物理科学领域的研究和教育。