MRI: Acquisition of Analytical Microprobe Facilities for an Existing Scanning Electron Microscope

0923047 TzolovLock Haven U of Pennsylvania技术概要：元素分析广泛应用于物理和生命科学学科。在亚微米尺度上进行元素分析拓宽了应用范围，在许多情况下提供了定性的新信息，特别是与亚微米成像相结合时。该项目将把宾夕法尼亚州洛克海文大学的扫描电子显微镜的成像能力与能量色散X射线光谱学和背散射电子检测的分析能力集成在一台仪器中。没有其他直接元素分析的方法，现在在大学;该仪器将支持一些正在进行的项目在大学，包括制造和纳米粒子的电子，光电和生物医学应用的调查，新型金属碳材料的合成，地质火成岩过程的研究，昆虫外骨骼和真菌的调查，和铝合金的调查。它将促进跨学科研究，打破生物学，化学，地质学和物理学教师之间应用研究跨学科合作的传统障碍。新设施将加强与宾夕法尼亚州立大学和好时医疗中心等机构的外部合作。将开辟新的研究途径，例如测量重金属和其他污染物在昆虫和真菌中的积累，这些信息将为当地环境政策提供信息。该系统的紧凑性允许广泛使用，并支持在本科阶段，课堂演示和实验室模块的一部分，学生的教育和研究培训的整合。它将有助于创造和支持本科生的研究机会，为新的一批NSF资助的纳米科学Scholars.Layman总结：分析组成各种材料的元素是必不可少的生物有机体和物理对象和过程的研究。特别有价值的是，能够确定组成如何在比光学显微镜更小的尺度上变化，但可以通过电子显微镜进行。扫描电子显微镜中的电子束产生几种类型的二次发射，每种发射都携带有关样品表面结构和成分的特定信息。该项目将在宾夕法尼亚州洛克海文大学将两个额外的探测器与扫描电子显微镜结合起来。 这将使研究人员能够确定组成样本的元素，并将组成与对象的图像相关联。的表面;所有在广泛的范围内从物体无法检测到光学显微镜的大小定期螺栓和螺母。这种广泛的规模和仪器固有的灵活性为大学所有科学学科的研究项目和跨学科的跨学科工作创造了新的机会。这些仪器将直接支持正在进行的新电子和光电器件（如发光器件和太阳能电池）、新材料制造和纳米颗粒合成、生物传感器、地质火成岩过程研究以及昆虫和真菌研究等项目。其中一些项目涉及与宾夕法尼亚州立大学、好时医疗中心和工业界的持续合作。将开辟新的研究途径，如。分析昆虫外骨骼和真菌中重金属和其他污染物的积累，这可以为当地的环境政策提供信息。该系统的紧凑性允许广泛用于整合本科生的教育和研究培训，课堂演示，并作为实验室教学模块的一部分。它将帮助我们为NSF资助的纳米科学学者的新群体创造和支持本科生研究机会。

0923047TzolovLock Haven U of PennsylvaniaTechnical Summary: Elemental analysis is widely used in a broad range of physical and life science disciplines. Performing elemental analysis on a submicron scale widens the range of applications and in many cases delivers qualitatively new information, especially when combined with submicron imaging. This project will integrate in one instrument the imaging capabilities of a Scanning Electron Microscope at Lock Haven University of Pennsylvania with the analytical power of Energy Dispersive X-ray Spectroscopy and Backscattered Electron Detection. No other methods for direct elemental analysis are now available at the University; this instrument will support a number of ongoing projects at the University including fabrication and investigation of nanoparticles for electronic, optoelectronic, and biomedical applications, synthesis of novel metal-carbon materials, study of geological igneous processes, investigations of insect exoskeletons and fungi, and investigations of aluminum alloys. It will promote interdisciplinary research and break down traditional barriers to interdisciplinary cooperation in applied research between faculty from biology, chemistry, geology, and physics. The new facilities will enhance external collaborations with, inter alia, Penn State University and Hershey Medical Center. New avenues for research will be opened, e.g. measurement of the accumulation of heavy metals and other contaminants in insects and fungi, information which will inform local environmental policies. The compactness of the system allows wide use and supports integration of education and research training of students at the undergraduate level, class demonstrations, and as part of laboratory modules. It will help create and support undergraduate research opportunities for new cohorts of NSF funded Nanoscience Scholars.Layman Summary: Analyzing the elements that make up various materials is essential to the study of biological organisms and physical objects and processes. It is especially valuable to be able to determine how composition varies on a scale smaller than that accessible with an optical microscope but which is accessible by electron microscopy. The electron beam in a Scanning Electron Microscope produces several types of secondary emissions, each of them carrying specific information about the surface structure and the composition of the sample. This project will integrate two additional detectors with a Scanning Electron Microscope at Lock Haven University of Pennsylvania. This will allow researchers to determine the elements that compose a sample and to correlate composition with the images of the object?s surface; all on a wide scale ranging from objects undetectable by optical microscopy up to the size of regular bolts and nuts. This wide scale and the inherent flexibility of the instrument create new opportunities for research projects in all science disciplines at the University and for interdisciplinary work across disciplines. These instruments will directly support ongoing projects in novel electronic and optoelectronic devices (such as light emitting devices and solar cells), fabrication of new materials and nanoparticle synthesis, biosensors, studies of geological igneous processes, and insect and fungi studies. Several of these projects involve ongoing collaborations with Penn State University, Hershey Medical Center, and industry. New avenues for research will be opened, such as. analyzing the accumulation of heavy metals and other contaminants in insect exoskeletons and fungi, which can inform local environmental policies. The compactness of the system allows wide use for integrating education and research training of undergraduate students, class demonstrations, and as part of laboratory teaching modules. It will help us create and support undergraduate research opportunities for our new cohorts of NSF funded Nanoscience Scholars.