MRI: Acquisition of a Scanning Transmission Electron Microscope for Research in Northern New England

MRI：购买扫描透射电子显微镜用于新英格兰北部的研究

• 批准号: 2213198
• 负责人: Ian Baker
• 金额: $ 101.97万
• 依托单位: Dartmouth College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2213198&HistoricalAwards=false
• 关键词: MRI; Acquisition; Scanning; Transmission; Electron

This project is jointly funded by Major Research Instrumentation (MRI) and the Established Program to Stimulate Competitive Research (EPSCoR).Non-technical Description:This Major Research Instrumentation award supports the acquisition of an advanced scanning transmission electron microscope (STEM), which is housed in a purpose-built laboratory within the Electron Microscope Facility at Dartmouth College. While located at Dartmouth, the STEM serves regional research and teaching opportunities over Northern New England including at the University of New Hampshire, the University of Vermont, and the University of Maine-Orono, where it is the only microscope of its kind. The remote monitoring and operation capabilities facilitate access for off-site users, including for courses and projects in statewide networks of primarily undergraduate institutions (PUI). The STEM supports teaching and research training of undergraduates, graduate students, and post-doctoral fellows, and broadens the participation of women and under-represented groups in biology, chemistry, engineering, and materials science through programs at Dartmouth and the University of New Hampshire, and through remote training and outreach via statewide PUI IDeA Networks of Biomedical Research Excellence. Many of the research projects are designed to yield direct benefits to society, addressing critical needs including energy production and storage, gas-sensing, advanced materials, and catalysts.Technical Description:The acquired STEM has a high-brightness field emission gun capable of operating from 20 kV to 200 kV, and is equipped with an energy dispersive X-ray spectrometer (EDS). The microscope makes possible many projects requiring high-resolution imaging and elemental analysis, as well as tomography and low-dose imaging for biological and beam-sensitive specimens. It enables research to answer fundamental questions regarding the structure, formation, properties, and interactions of a wide range of advanced materials such as high-entropy alloys, intermetallic compounds, porous organic materials, incrementally-formed sheet metal, tau-MnAl and NiFe permanent magnets, proton-exchange membrane cells, silicon devices for radiation damage detection, SiGeSn alloys, Na-S battery materials, nanoparticles alone and embedded in porous thin films, novel Li battery materials, nanocrystalline alloys and nanolaminates, two-dimensional transition metal dichalcogenides, non-oxide ceramics, and biomolecular specimens and biomaterials.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.

该项目由主要研究仪器（MRI）和启发竞争性研究的既定计划共同资助。Non-Technical描述：该主要研究仪器奖支持在Dartmouth Collector的Electon Microscope设施内的专用实验室中收购先进的扫描传输电子显微镜（STEM）。该STEM位于达特茅斯（Dartmouth），为新英格兰北部的区域研究和教学机会提供服务，包括新罕布什尔大学，佛蒙特大学和缅因州欧罗诺大学，这是同类唯一的显微镜。远程监视和操作功能为异地用户提供了访问，包括主要是本科机构（PUI）的全州网络中的课程和项目。 The STEM supports teaching and research training of undergraduates, graduate students, and post-doctoral fellows, and broadens the participation of women and under-represented groups in biology, chemistry, engineering, and materials science through programs at Dartmouth and the University of New Hampshire, and through remote training and outreach via statewide PUI IDeA Networks of Biomedical Research Excellence.许多研究项目旨在为社会带来直接利益，以满足关键需求，包括能源生产和存储，气体感应，高级材料和催化剂。技术描述：获得的STEM具有高光泽场发射枪，能够从20 kV到200 kV，并且配备了能量分散X射线光谱仪（EDS）。显微镜使许多需要高分辨率成像和元素分析的项目，以及用于生物学和束敏感标本的层析成像和低剂量成像。 It enables research to answer fundamental questions regarding the structure, formation, properties, and interactions of a wide range of advanced materials such as high-entropy alloys, intermetallic compounds, porous organic materials, incrementally-formed sheet metal, tau-MnAl and NiFe permanent magnets, proton-exchange membrane cells, silicon devices for radiation damage detection, SiGeSn alloys, Na-S battery materials, nanoparticles alone并嵌入了多孔薄膜，新颖的Li电池材料，纳米晶合金和纳米酰胺，二维过渡金属二甲化物，非氧化物陶瓷以及生物分子标本和生物材料的奖励，这反映了NSF的法定任务和审查的范围。