![]() And on the back of this sample is a photographic plate. The symbols generated by the process are detected by a scanning electron microscope detector and a concept of the shape of the sample is obtained. This is because the secondary electron can produce high-resolution images. Of all these symbols, the secondary electron is the most widely used. These are secondary electrons, backscattered electrons, x-rays, sample flow, etc. As a result of this interaction, scanning microscopes produce different types of symbols. When these initial electron beams act on the sample, they gradually lose energy. Thus the thermal electrons that are generated are made of high energy.Ī generated heat electron beam is emitted by a condenser lens with a diameter of 0.4 to 5 nanometer. The reason for using tungsten in this microscope is that the melting point of tungsten is the highest and the vapor pressure is the lowest. It has a photographic plate behind the object. The scanning electron microscope usually emits thermal electrons by heating the tungsten filament.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |