Types of Electron Microscope
There are two primary types of electron microscopes, each with its own unique method of operation:
Transmission Electron Microscope (TEM)
The transmission electron microscope utilizes electron passage through thin specimens to generate a projection image. The Transmission Electron Microscope (TEM) has several similarities to the standard compound light microscope. Among its many uses, TEM is employed to image the internal structures of cells in thin sections, the configuration of protein molecules using metal shadowing, the organization of molecules in viruses and cytoskeletal filaments through negative staining, and the arrangement of protein molecules in cell membranes via freeze-fracture techniques.
Scanning Electron Microscope (SEM)
Scanning Electron Microscopy typically relies on the ejection of secondary electrons from a specimen’s surface. A scanning electron microscope, with its exceptional depth of focus, is analogous to a stereo light microscope in the field of electron microscopy. The scanning electron microscope (SEM) is a powerful tool that provides highly detailed images of cell surfaces and entire organisms that cannot be obtained through transmission electron microscopy (TEM).
Also, SEM is also used for particle counting and size determination, as well as process control. The SEM operates by scanning a focused electron beam over the specimen’s surface in a raster pattern, forming an image.
Diagram of Electron Microscope
The diagram of the electron microscope shows its complex internal components, including electron sources and electromagnetic lenses. There are two types of electron microscopes. The electron gun releases electrons that pass through multiple components and hit the gold-coated specimen. The diagram of an electron microscope with labels helps understand the various parts and their functions easily.
The well-labeled diagram of the electron microscope is given below:
Table of Content
- What is Electron Microscope?
- Working Principle of Electron Microscope
- Types of Electron Microscope
- Parts of Electron Microscope
- Conclusion – Diagram of Electron Microscope
- FAQs on Diagram of Electron Microscope
Contact Us