Electron Microscopy - Lecture 6 - Comparison of electron sources

In this video I show you some pictures that I took of three different electron sources that are used in electron microscopes. These sources are the tungsten filament, LaB6 cathode and field emission gun.

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Electron Microscopy - Lecture 5 - Field Emission Gun

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Electron Microscopy - Lecture 4 - LaB6 gun