![]() The higher magnitude of magnification allows us to see the minute details. High Magnification: Modern-day electron microscopes have an extremely high magnification power and they can magnify a specimen up to 500,000 times.using an electron microscope yields better results. For instance, analysis of samples like hair, residue from gunshot, cloth fibres, biological evidence material like skin, tissue etc. Forensic Science: In the process of unravelling a criminal case, electron microscopes find application as they help in analysis of the evidence at a nanoscale.Electronics manufacturing industry, apparel, automotive, pharmaceutical, and aeronautical industries among others use electron microscopes ![]() Industry: Electron microscopy is also used widely for industrial applications to assist them in improving efficiencies in manufacturing processes and in developing new and better products.Also, oil and gas companies also use these microscopes in their exploration of oil and gas reserves Natural Resources: Electron microscopy is widely used in characterization and analysis of organic materials making them indispensable for mining companies in search of natural resources.The electron microscopes help researchers, students, and scientists to study specimens, both biological and non-biological at a nanoscale to be able to draw deep and meaningful insights Scientific Research: Electron microscopes find extensive usage in nanotechnology centres, universities, and research labs.There is also a camera right below the screen that is used to record the image. Image viewer and recording mechanism: The final magnified image of the specimen appears on the fluorescent screen.Specimen Holder: This is very thin carbon film or a collodion that is held in place by a metal grid.Ocular (projector) lens: The final image of the further magnified image is produced by the projector lens which are another set of magnetic lenses that create higher magnification of images, all the while maintaining excellent level of resolution and detail.Objective lens: The electron beam that comes out of the specimen and passes through the second set of magnetic lenses is usually termed as the objective lens and this lens produces the intermediate magnified image of the specimen.There is also a second condenser lens that focuses the electrons into a thin beam Condenser lens: This lens focuses the electron beam on to the specimen.Electromagnetic Lens: The electromagnetic lens are a combination of three types of lenses which aid in creating an image of the specimen:.The electron gun houses a tungsten filament that is heated to produce electrons Electron Gun: This is the part that generates the electrons.There are four major components in a transmission electron microscope. Parts of a Transmission Electron Microscope TEM is similar to a compound microscope but it used to achieve a very degree of magnification thereby allowing the observation of specimens at a nanometer level.TEM is typically used to view thin samples such as molecules, tissue sections etc.The working principle of this microscope is that the electrons pass through the exhibit and create a projection image of the specimen.A transmission electron microscope employs an electron beam produced at high voltage to brighten the specimen and produce an image to be viewed.Scanning Transmission Electron Microscopeġ.Built first in 1931, the electron microscope was built by a German academician and engineer Ernst Ruska and the same principles continue to be the basic structures for modern day electron microscopes.Įlectron microscopy is a modern-day technique that helps obtain high resolution images of non-biological and biological specimens.
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