Equipment: MRI: Track 2 Acquisition of an Analytical Aberration-Corrected Transmission Electron Microscope for Research and Education

设备： MRI：轨道 2 获取用于研究和教育的分析像差校正透射电子显微镜

• 批准号: 2320468
• 负责人: Andrew Madden
• 金额: $ 250万
• 依托单位: University of Oklahoma Norman Campus
• 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: 2023-09-15 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2320468&HistoricalAwards=false
• 关键词: Equipment; MRI; Track; Acquisition; Analytical

Non-Technical Description:This major research instrumentation (MRI) project enables acquisition of an aberration-corrected scanning transmission electron microscope (AC-STEM) housed at the University of Oklahoma (OU). The microscope allows researchers to simultaneously collect information about the structure and chemistry of a range of materials atom-by-atom. The AC-STEM system plays a key role in broader plans for shared infrastructure to support research and education in in a multi-state region, including Arkansas, Kansas, Nebraska, and northern Texas. The AC-STEM is managed by the Samuel Roberts Noble Microscopy Laboratory (SRNML) core user facility, ensuring the instrument widely accessible. The microscope empowers a diverse community of researchers to explore fundamental materials properties that underlie frontier technologies and address critical societal challenges while training the next generation of interdisciplinary science and engineering scholars. The instrument is also integrated into a range of efforts to broaden participation in science and engineering, including K-12 outreach, interactions with a regional minority-serving career technology center, and activities providing research experiences for undergraduates.Technical Description:Specifically, the MRI project enables acquisition of a 30-200kV probe-corrected system which allows researchers to interrogate materials with sub-angstrom accuracy to collect simultaneous image, diffraction, and spectral data. The AC-STEM supports transformative research in quantum technology and microelectronics, data-driven materials discovery, and nanomaterials for sustainability, among other topics. Examples of research activities facilitated by the instrumentation include atomic-level characterization of single-spin qubits, core-shell nanoparticles for nanophotonics, radiation-hardening of microelectronics, engineering novel alloys with intentional defects and complex compositions, and analysis of catalysts under reaction conditions that enable new sustainable environmental and energy technologies, including plastic waste reduction and hydrogen energy production, storage, and transportation.This Major Research Instrumentation (MRI) project is jointly funded by the Division of Materials Research (DMR) and the Established Program to Stimulate Competitive Research (EPSCoR).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.

非技术描述：这一重大研究仪器 (MRI) 项目能够获得俄克拉荷马大学 (OU) 的像差校正扫描透射电子显微镜 (AC-STEM)。该显微镜使研究人员能够同时逐个收集一系列材料的结构和化学信息。 AC-STEM 系统在支持阿肯色州、堪萨斯州、内布拉斯加州和德克萨斯州北部等多州地区研究和教育的更广泛的共享基础设施计划中发挥着关键作用。 AC-STEM 由 Samuel Roberts Noble 显微镜实验室 (SRNML) 核心用户设施管理，确保该仪器可广泛使用。该显微镜使多元化的研究人员能够探索前沿技术背后的基本材料特性，解决关键的社会挑战，同时培训下一代跨学科科学和工程学者。该仪器还融入了一系列扩大科学和工程参与的努力，包括 K-12 外展、与地区少数族裔服务职业技术中心的互动，以及为本科生提供研究经验的活动。 技术描述：具体而言，MRI该项目能够采集 30-200kV 探头校正系统，使研究人员能够以亚埃精度询问材料，以同时收集图像、衍射和光谱数据。 AC-STEM 支持量子技术和微电子学、数据驱动材料发现、可持续纳米材料等领域的变革性研究。该仪器促进的研究活动包括单自旋量子位的原子级表征、纳米光子学的核壳纳米颗粒、微电子学的辐射硬化、具有故意缺陷和复杂成分的新型合金工程以及在反应条件下分析催化剂实现新的可持续环境和能源技术，包括塑料废物减少和氢能生产、储存和运输。这一重大研究仪器（MRI）项目由材料研究部（DMR）和既定计划共同资助刺激竞争性研究 (EPSCoR)。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优点和更广泛的影响审查标准进行评估，被认为值得支持。