NC S&F In-situ 14C Facility

数控系统

• 批准号: NE/Y005465/1
• 负责人: Darren Francis Mark
• 金额: $ 198.02万
• 依托单位: Scottish Universities Environmental Research Centre
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FY005465%2F1
• 关键词: NC; S&F; situ; 14C; Facility

Cosmogenic in-situ 14C refers to the carbon-14 that is formed by cosmic ray interaction within the crystal lattice of surface materials. In-situ 14C allows researchers to measure processes that have occurred in the era of human civilisations, giving us unprecedented ability to measure rates of change prior to, and since, human impacts. Understanding natural processes at these timescales, and the impacts on them of human activity, has immediate and important applications in diverse NERC science fields such as: hazards and risk, soil production and erosion, agricultural development, archaeology, coastal change, glacial and fluvial processes, and tectonic evolution of mountain ranges. In response to UK community demand we propose to develop a new cutting-edge national laboratory to facilitate in situ 14C dating. Specifically, we will deliver the following scientific capability: Sample preparation for separating quartz for 'in-situ 14C' analyses. A single automated, bespoke extraction line for high-throughput extraction of carbon dioxide from mineral samples. Preparation of accelerator mass spectrometry targets for high-precision, low-concentration analyses. This new capability will allow UK researchers to address critical questions about the future of our planet that previously could not be addressed.

宇宙原位14C是指表面材料晶格内通过宇宙射线相互作用形成的碳14。原位 14C 使研究人员能够测量人类文明时代发生的过程，使我们能够前所未有地测量人类影响之前和之后的变化率。了解这些时间尺度的自然过程以及人类活动对其的影响，在 NERC 的不同科学领域具有直接和重要的应用，例如：危害和风险、土壤生产和侵蚀、农业发展、考古学、海岸变化、冰川和河流过程，以及山脉的构造演化。为了响应英国社区的需求，我们建议开发一个新的尖端国家实验室，以促进原位 14C 测年。具体来说，我们将提供以下科学能力： 用于分离石英以进行“原位 14C”分析的样品制备。一条自动化、定制的提取线，用于从矿物样品中高通量提取二氧化碳。制备用于高精度、低浓度分析的加速器质谱靶材。这项新功能将使英国研究人员能够解决以前无法解决的有关地球未来的关键问题。