A Radiocarbon Counting Facility for Conventional Dating of Small or Old Age Samples

用于小样本或旧样本常规测年的放射性碳计数设备

• 批准号: 8801697
• 负责人: Herbert Haas
• 金额: $ 5.23万
• 依托单位: Southern Methodist University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-11-15 至 1990-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8801697&HistoricalAwards=false
• 关键词: Radiocarbon; Counting; Facility; Conventional; Dating

Dr. Herbert Haas, Director of the Radiocarbon Laboratory at Southern Methodist University's Institute for the Study of Earth and Man, will purchase a low level background liquid scintillation counter. The "Quantulus" will permit increases in both the productivity and precision of the laboratory and permit the dating of both older and smaller samples than is now possible. In the last half decade radiocarbon dating has been revolutionized by the application of a direct counting accelerator technique. However problems entailed by this approach have also become apparent. Sample costs are high and waiting time is long. Dr. Haas has demonstrated that traditional liquid scintillation counting, using a state of the art machine will combine the advantages of accelerator dating with lower cost and shorter turnaround time. He plans to use this machine to examine the issue of the emergence of anatomically modern humans and will date several sites in Europe and the Near East which document this transition. Radiocarbon dating is crucial to archaeological research and Dr. Haas has developed a first rate laboratory which has analyzed archaeologically important samples. The addition of a high precision liquid scintillation counter will increase his contribution as well as permit him to address important specific problems. It will also provide a test case for the utility of the machine.

赫伯特哈斯博士，放射性碳实验室主任， 南卫理公会大学地球研究所 和人，将购买低水平的背景液体 闪烁计数器 “Quantulus”将允许增加 实验室的生产力和精度， 比现在更古老和更小的样本的年代测定 可能 在过去的五年里，放射性碳测年法已经被应用于 革命性的应用直接计数 加速器技术 然而，由此带来的问题 方法也变得明显。 样品成本高， 等待时间很长。 哈斯博士证明了传统的 液体闪烁计数，使用最先进的机器 将联合收割机的优点与较低的成本结合起来 和更短的周转时间。 他计划用这台机器 研究解剖学上现代人类的出现 并将确定欧洲和近东的几个地点的日期， 记录这一转变。 放射性碳年代测定法对考古学研究至关重要。 哈斯开发了一流的实验室， 重要的考古样本。 一个高附加值的 精密液体闪烁计数器将增加他的 他的贡献，以及允许他解决重要的具体问题， 问题 它还将提供一个测试用例， 该机