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二 问答题1 .氙灯是较理想的光源 ,为什么只有在特殊场合下使用 ?2 .微差干涉衬度是根据什么原理 ?3.试述在金相分析中微差干涉装置的应用。4.显示显微组织的特殊技术有哪几种 ?5.试画出透射电镜的光路示意图。6.电子束和固体作用时产生哪几种信号 ?7.试述透射电镜薄膜样品制
Second question and answer 1. Xenon lamp is the ideal light source, why only in special occasions? 2. Dilution interference is based on what principle? 3. Describe the application of the microscopic interference in metallographic analysis device. 4. What are the special techniques for displaying microstructure? 5. Sketch the optical path of TEM. 6. Electron beam and the role of the solid what kind of signal? 7. Tentative transmission electron microscopy film sample system