Facility Support: Purdue Rare Isotope Measurement Laboratory

设施支持：普渡大学稀有同位素测量实验室

基本信息

批准号：
0851981
负责人：
Marc Caffee
金额：
$ 197.86万
依托单位：
Purdue University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2009
资助国家：
美国
起止时间：
2009-05-01 至 2012-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0851981&HistoricalAwards=false
关键词：
Facility Support Purdue Rare Isotope

项目摘要

0851981CaffeeThis grant provides three years of continued partial support for the operation and maintenance of the Purdue Rare Isotope Measurement Laboratory (PRIME Lab)at Purdue University as a multi-user national facility for the geosciences and ancillary fields. Support for this Facility allows geoscientists access to specialized capabilities of the accelerator mass spectrometer and chemical preparation facilities at PRIME for the measurement of the very low-level cosmogenic nuclides 10Be, 14C, 26Al, 36Cl, 41Ca, and 129I for chronological and/or tracer studies. The Facility is currently developing techniques for other analysis of other rare isotopes with application to meteoritics and other fields. Funding provides minor salary support for PI faculty members, professional and technical staff members; maintenance support for the AMS system, including replacement parts; and expendable supplies for the chemistry laboratory. Additional operating expenses (about 50%) are derived from Purdue University, charges for sample measurement services, and research grants to the PI?s. The measurement of cosmogenic radionuclides by accelerator mass spectrometry (AMS) continues to support novel research in Earth surface processes and Quaternary geology, hydrology and glaciology which rely on surface exposure age dating, erosion rate estimates and isotopic tracer techniques for quantification of process rates. PRIME lab continues to be one of the only AMS labs worldwide that offers measurement and application services for AMS radionuclide systems other than radiocarbon and is currently the only laboratory that offers full service, chemical preparation through AMS measurement. PRIME Lab PIs continue to develop new AMS chemical separation and dating techniques and maintain actively funded research and research training programs that involve application of these radionuclides to a variety of geoscience problems.

0851981 CaffeEthis Grant为普渡大学的Purdue稀有同位素测量实验室（Prime Lab）的运营和维护提供了三年的持续部分支持，作为地球科学和辅助领域的多用户国家设施。对该设施的支持使地球科学家可以访问Prime加速器质谱仪和化学制备设施的专业能力，以测量非常低水平的宇宙核素10BE，14C，14C，26AL，36CL，41CA和129I研究。该设施目前正在开发用于对气象和其他领域应用的其他稀有同位素的其他分析的技术。资金为PI教职员工，专业和技术人员提供少量的薪水支持；对AMS系统的维护支持，包括更换零件；以及化学实验室的消耗供应。额外的运营费用（约50％）来自普渡大学，用于样本测量服务的费用以及对PI的研究赠款。通过加速器质谱法（AMS）对宇宙源性放射性核素的测量继续支持地球表面过程中的新研究以及依赖于表面暴露年龄，侵蚀率估计值和同位素轨迹技术来量化过程率的表面暴露年龄，侵蚀率估计和同位素痕迹技术。 Prime Lab仍然是全球唯一为AMS放射性核素系统提供测量和应用服务的AMS实验室之一，目前是唯一通过AMS测量提供全面服务，化学准备的实验室。 Prime Lab PI继续开发新的AMS化学分离和约会技术，并维持积极资助的研究和研究培训计划，这些研究和研究培训计划涉及将这些放射性核素应用于各种地球科学问题。