Electron microscopes

Light microscopes have a low Resolution. This means that if the magnification is above 1500x the image wont be clear.

we can achieve a higher resolution with electron microscope 

so we have two types of electron microscopes the first is 

Transmission electron microscopes (TEM)

• The electron beam passes through a very thin sample.
• Electrons pass through the denser parts of the sample less easily, so giving some contrast.
• The final image produced is 2D
• The magnification possible with a TEM is 500,000x

Scanning electron microscope (SEM)

• The electron…