Sunday, June 14, 2009

Condenser Lens

Here is an interesting piece. This is a condenser lens. It is one of the most important parts of an electron microscope because controls the intensity of the electron beam.My boss gave this to me on one of my first days in the lab and it's one heck of a paperweight. The thing weighs a ton because it is essentially a giant coil of wire. The coil is a big controllable electromagnet and "condenses" the size of the electron beam as it passes through.

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