FEI / THERMO FISCHER Tecnai Polara 透射电子显微镜用途：用于材料分析、纳米材料表征、法医及生物医学研究等领域，可对样品进行高分辨率成像与分析。技术原理：采用热场发射电子枪产生电子束，电子束穿透样品后，通过电磁透镜聚焦成像。配备能量过滤器，可对电子能量进行筛选，提升图像质量 。性能：加速电压 300kV 。点分辨率达 0.236nm，能清晰呈现样品微观结构。信息极限高，可提供丰富样品信息。具备多种探测器，如 Gatan K2 Summit 等，满足不同分析需求。样品台最大倾斜角度可达 ±70°，便于从不同角度观察样品 。Product Name: FEI / THERMO FISCHER Tecnai Polara Transmission Electron MicroscopePurpose: It is used in fields such as materials analysis, nanomaterial characterization, forensic and biomedical research, etc., and can perform high - resolution imaging and analysis on samples.Technical Principle: It uses a thermal field emission electron gun to generate an electron beam. After the electron beam penetrates the sample, it is focused and imaged through electromagnetic lenses. Equipped with an energy filter, the electron energy can be screened to improve the image quality.Performance: The acceleration voltage is 300kV. The point resolution reaches 0.236nm, which can clearly show the microstructure of the sample. It has a high information limit and can provide rich sample information. It is equipped with a variety of detectors, such as Gatan K2 Summit, to meet different analysis requirements. The maximum tilt angle of the sample stage can reach ±70°, which is convenient for observing the sample from different angles.