Field Emission Scanning Electron Microscope with Cryo-Setup

我们请求资金支持购买一台新的场发射扫描电子显微镜(FE-SEM)，该显微镜将安装在美因茨约翰尼斯·古滕贝格大学地球科学研究所内。该仪器将配备用于能量色散光谱(EDS)、电子背向散射衍射(EBSD)、阴极发光(CL)的探测器，以及用于处理冷冻样品的低温阶段。最先进的基本部件和附加部件的组合将使该仪器能够用于各种分析套件，例如检查冷冻保存的生物/生物材料、水凝胶或粘土矿物等水化/含水不稳定材料、快速准确地绘制轻元素分布图、化学定量、方位绘制以及各种类型的高分辨率成像。该仪器还将能够在“低真空”或“环境”条件下工作，因此我们检查的样品不应该需要导电涂层，从而优化了工作流程，并最大限度地减少了我们使其不适用于后续分析的可能性。由于其广泛的功能，该仪器将引起美因茨大学许多不同工作组的兴趣并经常使用，例如地质研究所的三名成员，包括两名早期职业(终身教职)教授以及化学和物理研究人员。我们对将这种分析能力带到美因茨的潜力感到兴奋，我们希望在美因茨使用和管理这种能力的科学家在上述绿化技术方面拥有丰富经验，以刺激新颖和创新的研究。

We request funds to support acquisition of a new field emission, scanning electron microscope (FE-SEM) to be housed in the Institute of Geosciences at Johannes Gutenberg-Universität Mainz. This instrument will be equipped with detectors for energy dispersive spectroscopy (EDS), electron backscatter diffraction (EBSD), cathodoluminescence (CL), and a cryogenic stage for working with frozen samples. The combination of state-of-the-art fundamental and additional components will allow this instrument to be used for a diverse suite of analyses, such as examination of cryo-preserved biological/biogenic material, hydrated/water-containing labile materials such as hydrogels or clay minerals, fast and accurate mapping of the distribution of light elements, chemical quantification, orientation mapping, and various types of imaging at high resolution. The instrument will also be capable of operating at „low vacuum“ or „environmental“ conditions, so the samples we examine should not need conductive coatings, optimizing workflows and minimizing the chance that we will make them unsuitable for latter analses. Because of its wide-ranging capabilities, the instrument will be of interest to, and regularly used by, a number of different working groups throughout Universität Mainz, such as three members of the Institute of Geology, including two early career (tenure track) Professors, and researchers in both Chemistry and Physics. We are excited at the potential to bring such analytical capabilities to Mainz, where we expect its use and management by dynamic scientists with substantial experience in the afforementioned techniques to stimulate novel, and innovative research.