Acquisition of a Zeiss CEM 902 Spectroscopic TEM to Replace a Zeiss EM 10A TEM.

这是一份购买新电子显微镜的建议书 包含集成的成像电子能量 光谱仪，以取代1975年购买的旧显微镜。 电子能谱仪可用于多个 modes. 最简单的模式提高了图像的敏锐度， 从成像中去除非弹性散射的电子 通路 图像的对比度也可以通过 选择不同能量损失水平的电子。 一 此功能的有用性的具体示例是 植物或真菌细胞壁结构的检查。 因为 许多细胞壁成分与 电子，不同成分之间的对比度可以 通过选择特定的能量窗口进行筛选， 电子。 改善标签渗透到组织中 使用硼化抗体的切片已经使用 用于检测的电子能谱仪。 新 显微镜将是唯一的电子显微镜， 植物科学显微镜设施。

This is a proposal to purchase a new electron microscope containing an integrated imaging electron energy spectrometer to replace an old microscope purchased in 1975. The electron energy spectrometer can be used in several modes. The simplest mode improves the acuity of images by removing inelastically scattered electrons from the imaging pathway. The contrast of images may also be changed by selecting electrons of different energy loss levels. A specific example of the usefulness of this feature is in the examination of plant or fungal cell wall structure. Because many cell wall components interact differently with electrons, the contrast between the different components can be enhanced by selecting particular energy windows to screen electrons. Improved penetration of label into tissue sections using boronated antibodies has been achieved using the electron energy spectrometer for detection. The new microscope will be the only electron microscope for the Plant Science Microscopy Facility.