Electron Microscope- Definition, Principle, Types, Parts, Uses, Labeled Diagram
Electron Microscope -Definition, Principle, Types, Parts, Uses, Labeled Diagram: What is an Electron Microscope ? An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination. It is a special type of microscope having a high resolution of images,able to magnify objects in nanometres, which are formed by controlled use of electrons in a vacuum captured on a phosphorescent screen. Ernst Ruska (1906-1988), a German engineer and academic professor, built the first Electron Microscope in 1931,and the same principles behind his prototype still government modern EMs. Electron Microscope Working Principle of Electron microscope Electron microscopes use signals arising from the interaction of an electron beam with the sample to obtain information about structure, morphology, and composition. The electron gun generates electrons. Two sets of condenser lenses focus the electron beam on the specimen and then into a thin tight beam. T...