Support for GeoCAMS: An Accelerator Mass Spectrometry Facility for Earth Science Research

支持 GeoCAMS：用于地球科学研究的加速器质谱设备

• 批准号: 0630122
• 负责人: Robert Finkel
• 金额: $ 4.6万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-11-10 至 2006-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0630122&HistoricalAwards=false
• 关键词: Support; GeoCAMS; Accelerator; Mass; Spectrometry

0217981FinkelThis grant will provides two years partial support for the operation of GeoCAMS, the Earth Science component of the FN tandem van de Graaff accelerator at the Lawrence Livermore National Laboratory Center for Accelerator Mass Spectrometry (CAMS) as a facility for isotopic studies in the Earth Sciences. In ten years of successful operation, GeoCAMS has developed and demonstrated capabilities to measure 3H, 7,10Be, 26Al, 36Cl, and 129I at levels found in terrestrial samples and 41Ca at levels found in meteorites. GeoCAMS has measured 15,000 10Be targets, 9400 26Al targets, 9800 36Cl targets, 300 41Ca targets and a lesser number of 3H, 7Be and 129I targets. GeoCAMS, built with DOE and UC funds, has served numerous NSF PIs, including more than twenty during the past year, and has, de facto, come to serve NSF Earth Sciences as a facility for AMS measurements. During this time GeoCAMS has played a key role in education. Twenty-seven Ph.D. students and seven master's students have been trained at GeoCAMS. The large majority of the new surface exposure dating labs set up at U.S. universities during the past few years have been started by young faculty trained at GeoCAMS. In parallel to the facility capability supported by this grant, a wide range of Earth science research in paleoclimate, ice core research, Earth surface processes and atmospheric mixing is carried out by GeoCAMS staff. The goal of this proposal is to make the GeoCAMS facility, which is rated at or near the top of such facilities worldwide, available to the NSF Earth Science community while at the same time continuing to improve the existing performance and to add capabilities for new nuclides, such as in-situ 14C and 53Mn. ***

0217981finkelthis Thins Grant将为Geocams的运行提供两年的部分支持，这是Geocams的运行，这是FN Tandem van de Graaff Graaff加速器的地球科学组成部分，劳伦斯·利弗莫尔国家实验室加速器质谱中心（cam）作为地球科学等同位研究的设施。在成功运营的十年中，地理膜在陆地样品中发现的水平和41CA的水平在陨石中发现的水平开发并证明了测量3H，7,10BE，26AL，36Cl和129i的能力。 Geocams测量了15,000个10BE目标，9400 26个目标，9800 36Cl目标，300 41CA目标，较少的3H，7BE和129i目标。 由DOE和UC基金建造的地理剂曾在过去一年中为许多NSF PIS提供服务，其中包括二十多个PI，事实上，它已经为NSF Earth Sciences提供了AMS测量的设施。在此期间，Geocams在教育中发挥了关键作用。二十七世博士学生和七个硕士学生接受了地理摄影的培训。 在过去几年中，在美国大学建立的新的表面曝光约会实验室的绝大多数都是由在Geocams培训的年轻教师开始的。 与这笔赠款支持的设施能力并行，地球​​气候，冰核研究，地球表面过程和大气混合的广泛地球科学研究是由地理船员进行的。 该提案的目的是使NSF Earth Science Community在全球此类设施的顶部或附近进行额定的地理剂设施，同时继续改善现有性能并增加新核尺寸的功能，例如原地14C和53MN。 ***