Research in the Earth Sciences Using Accelerator Mass Spectrometry at Purdue University

普渡大学利用加速器质谱进行地球科学研究

• 批准号: 8916667
• 负责人: David Elmore
• 金额: $ 66.65万
• 依托单位: Purdue Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-04-15 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8916667&HistoricalAwards=false
• 关键词: Research; Earth; Sciences; Using; Accelerator

This award provides funding support for the operation and equipment upgrade costs of setting up a research center for accelerator mass spectrometry (AMS) based on an existing FN tandem accelerator at Purdue University. Establishment and operation of the facility will be a joint venture involving faculty and technical personnel from a combination of the departments of physics, earth and atmospheric sciences, and chemistry at Purdue. The AMS facility is intended to service the analytical needs of the U.S. geosciences research community nationwide. Accelerator mass spectrometry provides unique sensitivity capabilities for the detection and quantitative measure of very small concentrations of isotopes in very small samples of matter. To date AMS has proven particularly useful for tracking the mass transfer of subducted sediments and groundwater and for dating geological and archeological samples. The most useful isotopes in such applications so far have been carbon-14, chlorine-36, beryllium-10, and aluminum-26. The Purdue facility will concentrate on measurements of these isotopes in a variety of geological samples and in technique development efforts aimed at improving detection limits and precision for these and additional isotopes of potential interest in the geosciences.

该奖项为行动提供资金支持， 建立研究中心的设备升级费用 基于现有FN的加速器质谱（AMS） 串联加速器的研究建立和 该设施的运营将是一个合资企业， 教师和技术人员的组合， 物理学系，地球和大气科学， 普渡大学的化学课AMS设施旨在为 美国地球科学研究界的分析需求 全国范围 加速器质谱提供独特的灵敏度 检测和定量测量的能力 在非常小的物质样本中的同位素浓度很小。 到目前为止，AMS已被证明对跟踪质量特别有用 俯冲沉积物和地下水的迁移以及测年 地质和考古样本最有用的同位素 到目前为止，这些应用是碳-14，氯-36， 铍10和铝26普渡工厂将 专注于测量这些同位素在各种 地质样品和技术开发工作， 提高了这些和其他物质的检测限和精度 在地球科学中具有潜在意义的同位素。