Acquisition of a Lexxyg Research Devise for Radiative Stimulated Luminescence Dating

购买用于辐射受激发光测年的 Lexxyg 研究装置

• 批准号: 2309407
• 负责人: Marine Frouin
• 金额: $ 15.87万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2309407&HistoricalAwards=false
• 关键词: Acquisition; Lexxyg; Research; Devise; Radiative

With the support of the National Science Foundation, the Luminescence Dating Research Laboratory at Stony Brook University (SBU), acquires a Lexsyg Research Luminescence Reader from Freiberg Instruments. This state-of-the-art device has been specially designed to conduct thermoluminescence (TL), optically stimulated luminescence (OSL), and infrared-radiofluorescence (IR-RF) measurements for the dating of sedimentary samples. The enhanced capacity of this equipment to include IR-RF stimulation and detection provides a vital resource for students, faculty, and visiting scholars questioning the current understanding of human evolution in Africa and Eurasia. In addition to specific project applications, the instrument is used in the SBU laboratory’s work in refining the accuracy and efficacy of IR-RF dating while expanding the upper dating limit of the methodology. The rarity of this instrument, and specifically its physical adaptability, is a key factor in engaging interdisciplinary STEM youth by making luminescence dating and research in geochronology more broadly engaging.Innovations in dating methods are crucial for pushing the boundaries of our understanding of the past. By extending the time range of the application of luminescence-based dating techniques, the research group provides fundamental new dating evidence directly relevant to archaeological and ecological investigations centered on hominin evolution, past human behavior, and responses to climate change. The instrument’s ability to service IR-RF dating provides a new tool for archaeologists and evolutionary anthropologists to obtain numerical ages on Pleistocene fossil-bearing sediments. Specifically, the device will contribute to the success of multiple ongoing research projects focused on:1) Examining the accuracy and age limit of the IR-RF dating method,2) Determining the age of sedimentary deposits containing early stone tools and fossils across multiple regions of the world. 3) Demonstrate the link between environmental changes and the dispersion of ancient cultures across multiple continents.4) Defining the cultures, territories, and interactions between multiple human species over the Paleolithic and the timing of the disappearance of Neanderthals and Denisovans,5) Tracking the impact of ecological change on early pastoral societies and their resulting exploitation of the territory.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

在美国国家科学基金会的支持下，石溪大学 (SBU) 的发光测年研究实验室从 Freiberg Instruments 购买了一台 Lexsyg 研究发光读数仪，这款最先进的设备专门用于进行热释光 (TL)。 ）、光激发光 (OSL) 和红外辐射荧光 (IR-RF) 测量，用于沉积样品的定年 该设备的增强能力包括 IR-RF 刺激和检测。为学生、教师和访问学者提供了重要的资源，以质疑当前对非洲和欧亚大陆人类进化的理解。除了特定的项目应用之外，该仪器还用于 SBU 实验室提高 IR-RF 准确性和有效性的工作。该仪器的稀有性，特别是它的物理适应性，是通过使时间测年和地质年代学研究更广泛地参与来吸引跨学科 STEM 年轻人的关键因素。测年方法的创新对于通过扩大基于发光的年代测定技术的应用时间范围，研究小组提供了与以古人类进化、过去人类行为和人类行为为中心的考古和生态调查直接相关的基本新年代测定证据。该仪器提供红外-射频测年服务的能力为考古学家和进化人类学家提供了获取更新世化石沉积物年龄的新工具。具体来说，该设备将有助于多个正在进行的研究项目的成功。内容：1) 检查红外-射频测年方法的准确性和年龄限制，2) 确定世界多个地区含有早期石器和化石的沉积物的年龄，3) 证明环境变化与分散之间的联系。跨越多个大陆的古代文化。4）定义旧石器时代多个人类物种之间的文化、领土和相互作用以及尼安德特人和丹尼索瓦人消失的时间，5）跟踪生态的影响该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。