Acquisition of a Field Emission Gun Scanning Electron Microscope for the Microscopy Laboratory at the University of North Carolina at Wilmington

为北卡罗来纳大学威尔明顿分校的显微镜实验室购置场发射枪扫描电子显微镜

• 批准号: 9970099
• 负责人: Richard Dillaman
• 金额: $ 4.18万
• 依托单位: University of North Carolina at Wilmington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-04-01 至 2000-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9970099&HistoricalAwards=false
• 关键词: Acquisition; Field; Emission; Gun; Scanning

Abstract - 9970099 This award supports the acquisition of a Philips XL30 FEG scanning electron microscope (SEM) with a backscattered electron detector, an integrated EDAX non-dispersive X-ray microanalysis system, and a Cressington 208 HR turbo sputter coater. The high-resolution XL30 and its support equipment will replace a 15 year old ISI SX40 SEM, that has extremely limited capabilities. The XL30 will greatly enhance seven different research programs, four of which are presently supported by project grants from the National Science Foundation. These research projects cover a wide range of topics, from the ultrastructure of dolphin blubber to the mechanisms whereby crustaceans and other organisms form calcified structures. The wide range of topics described indicates how an instrument, and, in fact, microscopy as a whole can add to the scientific information to be gained from almost any set of experimental procedures. The XL30 will also greatly enhance the range of analytical tools and training offered to graduate and undergraduate students at UNCW.The XL30, because of its use of low accelerating voltages, allows one to view uncoated, as well as coated specimens. Investigators interested in biomineralization could, for example, examine the interface between calcite crystals and organic matrix in oyster shell with an atomic force microscope (AFM) after it has been visualized with the XL30. The ability to capture a high resolution image and subsequently use multiple analytic tools (e.g. AFM, nuclear magnetic resonance, material testing, antibody probes) on the same specimen would greatly enhance the on-going research programs. The X-ray analysis component, especially the mapping capabilities, will likewise enhance several programs.The Microscopy Laboratory at UNCW is part of a growing Biological and Marine Sciences Program that includes a new 18 million dollar laboratory-sciences building and a 17 million dollar Marine Sciences Facility that is nearing completion. In addition to supporting the specific programs described, National Science Foundation support of a XL30 would greatly increase the scope of the analytical and microscopic research possible at UNCW and enhance its growing basic research programs.

该合同支持收购飞利浦XL30 FEG扫描电子显微镜（SEM），该扫描电子显微镜带有背散射电子探测器，集成EDAX非色散x射线微分析系统和Cressington 208 HR涡轮溅射镀膜机。高分辨率XL30和它的支持设备将取代15年的ISI SX40扫描电镜，它的能力非常有限。XL30将极大地加强七个不同的研究项目，其中四个目前由国家科学基金会的项目资助。这些研究项目涵盖了广泛的主题，从海豚脂肪的超微结构到甲壳类动物和其他生物形成钙化结构的机制。书中所描述的广泛主题表明，一种仪器，事实上，显微镜作为一个整体，可以为从几乎任何一套实验程序中获得的科学信息增添新的内容。XL30还将大大增加为UNCW研究生和本科生提供的分析工具和培训的范围。XL30，由于其使用低加速电压，允许人们查看未涂层，以及涂层样品。例如，对生物矿化感兴趣的研究人员可以在用XL30可视化后，用原子力显微镜（AFM）检查牡蛎壳中方解石晶体和有机基质之间的界面。捕获高分辨率图像并随后在同一样品上使用多种分析工具（例如原子力显微镜，核磁共振，材料测试，抗体探针）的能力将大大增强正在进行的研究计划。x射线分析组件，特别是映射功能，将同样增强几个程序。UNCW的显微镜实验室是一个不断增长的生物和海洋科学项目的一部分，该项目包括一个新的1800万美元的实验室科学大楼和一个即将完工的1700万美元的海洋科学设施。除了支持所描述的特定项目外，国家科学基金会对XL30的支持将大大增加UNCW分析和微观研究的范围，并加强其不断增长的基础研究项目。