Operation of a National Ocean Sciences Accelerator Mass Spectrometry Facility at the Woods Hole Oceanographic Institution

伍兹霍尔海洋研究所国家海洋科学加速器质谱设施的运行

• 批准号: 0753487
• 负责人: William Jenkins
• 金额: $ 891.54万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Cooperative Agreement
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0753487&HistoricalAwards=false
• 关键词: Operation; National; Ocean; Sciences; Accelerator

This award provides funding for continued operation and maintenance of the National Ocean Sciences Accelerator Mass Spectrometer (NOSAMS). NOSAMS carries out analysis of carbon isotopes (primarily radiocarbon, 14C) via accelerator mass spectrometry. It also carries out research and development in new AMS radiocarbon sample preparation techniques and accelerator operations. It has operated since 1993 under cooperative agreements (0228996, 9807266, 9301015) between WHOI and NSF, and was acquired, tested and put into operation with NSF support (8802509) beginning in 1989. The present cooperative agreement was implemented in 2003, and has an anniversary date of 4/1 annually. When it began operations, water samples collected for the World Ocean Circulation Experiment (WOCE), a major international field program involving very substantial NSF support, comprised the majority of samples analyzed by NOSAMS. Most of the original WOCE radiocarbon analyses were completed within the operations of the 1998-2003 cooperative agreement. Beginning in about 2003, samples collected as part of Climate Variability (CLIVAR) and Carbon Cycle programs supported by programs in the Division of Ocean Sciences have made up a significant portion of the sample submissions to NOSAMS. For the current award, approximately 1,000 CLIVAR-related analyses are planned for Year 1, and it is anticipated that NOSAMS will carry out approximately 1,000 such analyses annually for the next five years, subject to continued review and approval by NSF. This award provides funding for five years of operation and maintenance the NOSAMS and for a variety of instrumentation upgrades necessary for continued improvement of the measurements and sample preparation systems.

该奖项为继续运营和维护国家海洋科学加速器质谱仪（NOSAMS）提供了资金。 NOSAMS通过加速器质谱法进行了碳同位素（主要是放射性碳，14c）的分析。它还在新的AMS放射性碳样品制备技术和加速器操作中进行了研发。它自1993年以来一直以合作协议（0228996，9807266，9301015）为基础，并在1989年开始以NSF支持（8802509）的方式获得，测试和进行运营。目前的合作协议于2003年实施，并于2003年实施了一项周期的日期，该协议是4/1的周期日期。 当它开始运营时，为世界海洋循环实验（WOCE）收集的水样，这是一项主要的国际野外计划，涉及非常大量的NSF支持，包括由NOSAMS分析的大多数样品。 在1998 - 2003年的合作协议的运营中，大多数原始WOCE放射性碳分析都完成了。从2003年左右开始，作为气候变异性（Clivar）和海洋科学部计划支持的碳循环计划的样本占了对NOSAMS的样本提交的很大一部分。 对于目前的裁决，计划在第1年进行大约1,000个与Clivar相关的分析，预计NOSAMS将在未来五年内每年进行大约1,000种此类分析，但需要NSF的持续审查和批准。 该奖项为NOSAMS的运营和维护提供了五年的资金以及继续改进测量和样品制备系统所需的各种仪器升级。