MRI: Acquisition of a Field Emission Transmission Electron Microscope

来自主要研究仪器计划的这一奖项支持加州大学圣巴巴拉分校获得最先进的场发射透射电子显微镜（FE-TEM），该显微镜具有原子分辨率Z衬度成像和光谱学功能。该仪器对于满足电子，无机和结构材料正在进行和未来研究项目的需求至关重要，UCSB提出了收购。 研究的需要可以满足与200 kV TEM/STEM配备了场发射源，高角度环形暗场探测器，2Kx 2K CCD探测器，和国家的最先进的电子光谱仪/能量过滤器。Z衬度成像和原子分辨率光谱已在仪器上进行了常规演示，探头尺寸为1.4埃，束流为20皮安，能量分辨率为~0.7电子伏。 收购拟议的FE-TEM将释放现有的传统200 kV TEM软材料的研究。 新的FE-TEM的获得将加强对高级TEM学生的教育。 研究生和博士后研究人员是UCSB TEM的主要“动手”用户。 材料部提供一系列TEM课程的正式培训。将提供一门反映FE-TEM独特能力的高级TEM新课程。 高级TEM课程将包括一个实验室模块，提供CTEM和STEM高分辨率成像以及电子能量损失谱等高级分析技术的实践培训。 通过MRSEC的Outreach项目，科学家们将与高中教师一起进行TEM样品制备和成像，从而教授和连接广大的学生和教师社区。为了满足正在进行和未来的先进电子，无机和结构材料研究项目的需求，UCSB将获得最先进的场发射透射电子显微镜（FE-TEM）。 这样的仪器产生原子尺度的电子探针。 这种亚纳米探针（~2 x 10-10米）可用于对单个原子和原子柱进行成像，并提供有关结构，成分和键合的直接信息。 先进的FE-TEM提供了原子尺度信息的独特组合，这对纳米科学和纳米技术的发展至关重要。研究生和博士后研究人员是UCSB TEM的主要“动手”用户。 材料部提供的一系列课程中提供了TEM的正式培训。 新的FE-TEM将加强对高级TEM学生的教育。将提供一门反映FE-TEM独特能力的高级TEM新课程。 高级TEM课程将包括CTEM和STEM高分辨率成像以及电子能量损失谱等高级分析技术的实践培训。 通过MRSEC的外展计划，UCSB的科学家将与高中教师合作进行TEM样品制备和成像，从而教授和连接到广泛的学生和教师社区。

This award from the Major Research Instrumentation program supports the University of California at Santa Barbara with the acquisition of a state-of-the-art field emission transmission electron microscope (FE-TEM) with capabilities for atomic resolution Z-contrast imaging and spectroscopy. The instrument is crucial to meet needs in ongoing and future research projects in electronic, inorganic, and structural materials, UCSB proposes the acquisition. The needs of the research can be fulfilled with a 200 kV TEM/STEM equipped with a field emission source, high angle annular dark field detector, a 2Kx2K CCD detector, and state-of-the-art electron spectrometer/energy filter. Z-contrast imaging and atomic resolution spectroscopy have been routinely demonstrated on the instrument with a 1.4 Angstrom probe size, 20 picoAmpere beam current, and energy resolution of ~0.7 electron Volts. The acquisition of the proposed FE-TEM will free an existing conventional 200 kV TEM for studies of soft materials. The acquisition of the new FE-TEM will strengthen the education of students in advanced TEM. Graduate students and post-doctoral researchers are the primary 'hands-on' users of TEM at UCSB. Formal training in TEM is provided in a series of courses is offered in the Materials Department. A new course in advanced TEM that reflects the unique capabilities of a FE-TEM will be offered. The advanced TEM course will include a lab module to provide hands-on training in high-resolution imaging in CTEM and in STEM and in advanced analytical techniques, such as electron energy-loss spectroscopy. Through the Outreach program of the MRSEC, the scientists will work with high school teachers on TEM sample preparation and imaging and thus teach and connect to a broad community of students and teachers.To meet needs in ongoing and future research projects in advanced electronic, inorganic, and structural materials, UCSB will acquire a state-of-the-art field emission transmission electron microscope (FE-TEM). Such an instrument produces an atomic scale electron probe. This sub-nanometer probe (~2 x 10-10 meters) can be used to image individual atoms and atomic columns with direct information on structure, composition, and bonding. An advanced FE-TEM provides a unique combination of atomic-scale information that is essential for the advancement of nanoscience and nanotechnology.Graduate students and post-doctoral researchers are the primary 'hands-on' users of TEM at UCSB. Formal training in TEM is provided in a series of courses offered in the Materials Dept. The new FE-TEM will strengthen the education of students in advanced TEM. A new course in advanced TEM that reflects the unique capabilities of a FE-TEM will be offered. The advanced TEM course will include hands-on training in high-resolution imaging in CTEM and in STEM and in advanced analytical techniques, such as electron energy-loss spectroscopy. Through the Outreach program of the MRSEC, UCSB scientists will work with high school teachers on TEM sample preparation and imaging and thus teach and connect to a broad community of students and teachers.