Equipment: MRI Track 1: Acquisition of a Laser Ablation Time of Flight Inductively-Coupled Plasma Mass Spectrometer for UCSB Researchers and Educators

设备：MRI 轨道 1：为 UCSB 研究人员和教育工作者购买激光烧蚀飞行时间电感耦合等离子体质谱仪

• 批准号: 2320389
• 负责人: John Cottle
• 金额: $ 88.33万
• 依托单位: University of California-Santa Barbara
• 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 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2320389&HistoricalAwards=false
• 关键词: Equipment; MRI; Track; Acquisition; Laser

This Major Research Instrumentation (MRI) award supports the acquisition of an integrated Laser Ablation Time Of Flight Inductively-Coupled Plasma Mass Spectrometer (LA-TOF-ICP-MS) system for research and teaching at the University of California Santa Barbara (UCSB). This instrumentation will facilitate the investigations of fourteen UCSB faculty and researchers, their students, and collaborators. It will also enable access for a broad range of researchers and students elsewhere in California and globally. The new analytical capabilities of this system will improve the quality of undergraduate learning and instruction in earth science and allied fields, provide new opportunities s for undergraduate and graduate research projects, and form the basis for the creation of novel and engaging analytical geochemistry coursework. The PIs on this award actively participate in the Geochemical Society’s capacity-building grants program, and the NSF-funded ‘Advancing Geochronology Science, Spaces, and Systems’ (AGeS3), which fund research opportunities for underrepresented students as well as scientists from developing countries.The LA-TOF-ICP-MS system enables rapid three-dimensional imaging of elemental and isotopic variations in geological and biological materials at the micron scale with minimal sample preparation. Key capabilities of this system include the ability to scan the entire mass spectrum from sodium to uranium in less than 30 microseconds, and the routine production of quantitative images at a rate of up to 1000 pixels per second at detection limits in the parts-per-million range. Specific research objectives include: 1) dating complexly zoned minerals to understand a range of magmatic, metamorphic, sedimentary, and tectonic processes, 2) characterizing the often-complex distribution of U in carbonates to obtain better U-Pb ages, and; 3) retrieving detailed paleoclimate proxy records from carbonates.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.

该重大研究仪器 (MRI) 奖项支持购买集成激光烧蚀飞行时间电感耦合等离子体质谱仪 (LA-TOF-ICP-MS) 系统，用于加州大学圣巴巴拉分校 (UCSB) 的研究和教学。该仪器将促进 14 名 UCSB 教职人员和研究人员、他们的学生和合作者的调查，也将使加州和全球其他地方的广泛研究人员和学生能够使用该系统的新分析功能，从而提高质量。地球科学及相关领域的本科生学习和教学，为本科生和研究生研究项目提供新的机会，并为创建新颖且引人入胜的分析地球化学课程奠定基础。该奖项的 PI 积极参与地球化学会的活动。 -建筑赠款计划，以及国家科学基金会资助的“推进地质年代学、空间和系统”(AGeS3)，该项目为来自发展中国家的代表性不足的学生和科学家提供研究机会。 LA-TOF-ICP-MS 系统能够以最少的样品制备对地质和生物材料中的元素和同位素变化进行快速三维成像，该系统的主要功能包括扫描从钠到整个质谱的能力。铀的检测速度不到 30 微秒，并且以每秒 1000 像素的速度常规生成百万分之一范围内的检测限的定量图像。具体研究目标包括：1）对复杂分区进行年代测定。矿物以了解一系列岩浆、变质、沉积和构造过程，2) 表征碳酸盐岩中通常复杂的 U-Pb 分布，以获得更好的 U-Pb 年龄，以及 3) 从碳酸盐中检索详细的古气候代理记录。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，NSF 的法定使命被认为值得支持。