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弗莱贝格仪器公司购买了一台Lexsyg Research发光读取器。这种最先进的设备专门设计用于进行热释光(TL)、光激发发光(OSL)和红外辐射荧光(IR-RF)测量，用于沉积样品的测年。这种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一个重要的资源，他们质疑目前对非洲和欧亚大陆人类进化的理解。除了具体的项目应用外，该仪器还用于SBU实验室的工作，以完善IR-RF测年的准确性和有效性，同时扩大该方法的测年上限。这种仪器的稀有性，特别是其物理适应性，是通过使发光测年和地质年代学研究更广泛地参与到跨学科STEM青年中来的一个关键因素。测年方法的创新对于推动我们对过去的理解的界限至关重要。通过扩大基于发光的测年技术的应用时间范围，该研究小组提供了基本的新的测年证据，这些证据与考古学和生态学研究直接相关，重点是原始人的进化、过去的人类行为和对气候变化的反应。该仪器的IR-RF测年能力为考古学家和进化人类学家提供了一种新的工具，可以获得更新世含化石沉积物的数字年龄。具体地说，该设备将有助于正在进行的多个研究项目的成功，这些项目集中在：1)检查IR-RF测年方法的准确性和年龄限制；2)确定世界多个地区包含早期石器和化石的沉积沉积物的年龄。4)定义旧石器时代的文化、领土和多种人类物种之间的互动，以及尼安德特人和丹尼索瓦人消失的时间；5)跟踪生态变化对早期牧民社会的影响及其对领土的开发。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。