Support for Applications of Accelerator Mass Spectrometry inthe Earth Sciences

支持加速器质谱在地球科学中的应用

• 批准号: 8803803
• 负责人: Udo Fehn
• 金额: $ 15.27万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-07-01 至 1991-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8803803&HistoricalAwards=false
• 关键词: Support; Applications; Accelerator; Mass; Spectrometry

This project will support the development of Accelerator Mass Spectrometry (AMS) applications in the earth sciences at the Nuclear Structure Laboratory of the University of Rochester. Improvements in the sensitivity of the AMS technique for analyzing the isotopes chlorine-36, iodine-129, calcium-41 and osmium-186/187 will be a major focus of the project. Another product of the project will be the synthesis, in collaboration with the National Bureau of Standards, of accurate isotope concentration standards for chlorine and iodine. Accelerator Mass Spectrometry has developed into an important technique because it is in many cases the only method sensitive enough for the measurement of rare isotopes that can be used to date the age of geological events and to trace the transfer of matter within the Earth.

该项目将支持在罗切斯特大学核结构实验室开发加速器质谱仪(AMS)在地球科学中的应用。提高AMS技术分析同位素氯-36、碘-129、钙-41和铯-186/187的灵敏度将是该项目的一个主要重点。该项目的另一个产品将是与国家标准局合作，合成准确的氯和碘同位素浓度标准。加速器质谱仪已发展成为一项重要技术，因为在许多情况下，它是唯一一种足够灵敏的方法，可以用来测量稀有同位素，以确定地质事件的年龄，并追踪物质在地球内的转移。