日立 HITACHI S-2600 扫描电子显微镜用途：适用于材料科学、生物学、半导体等多领域，可对金属、陶瓷、生物切片等各类样品进行微观表面结构观察，获取表面形貌、颗粒大小及分布等信息，搭配能谱仪可开展微区化学成分分析。技术原理：电子枪发射电子束，在加速电压作用下，经电子透镜聚焦后扫描样品表面。样品受电子束激发产生二次电子、背散射电子等信号，仪器收集并放大这些信号，转化为图像呈现样品微观特征。性能：加速电压 0.5 - 30kV；放大倍率 40X - 300,000X；可变压力范围 1 - 270Pa；二次电子像最高分辨率可达 5nm；配备二次电子（SEs）和背散射电子（BSE）探测器 。Product Name: Hitachi HITACHI S-2600 Scanning Electron MicroscopePurpose: It is applicable to multiple fields such as materials science, biology and semiconductors. It can observe the micro surface structures of various samples like metals, ceramics and biological sections, obtaining information such as surface morphology, particle size and distribution. Equipped with an energy spectrometer, it can conduct micro-area chemical composition analysis.Technical Principle: The electron gun emits an electron beam. Under the action of the acceleration voltage, it is focused by the electron lens and then scans the sample surface. The sample is excited by the electron beam to generate signals such as secondary electrons and backscattered electrons. The instrument collects and amplifies these signals and converts them into images to present the micro characteristics of the sample.Performance: The acceleration voltage ranges from 0.5 - 30 kV. The magnification is 40X - 300,000X. The variable pressure range is 1 - 270 Pa. The maximum resolution of the secondary electron image can reach 5 nm. It is equipped with secondary electron (SEs) and backscattered electron (BSE) detectors.