Electron microscopes use a focused beam of electrons instead of light to "image" the specimen and gain information as to its structure and composition. Common types of information yielded are ...

SEM stands for scanning electron microscope. The SEM is a microscope that uses electrons instead of light to form an image. Since their development in the early 1950's, scanning electron microscopes ...

Transmission electron microscopy is a general type of electron microscopy that generates an image of the internal structure of a thin sample using a beam of electrons to achieve much higher ...

Both types of electron microscopes make black-and-white images ... Interesting objects for students to look at could include different fabrics and the torn edge of paper. Pupils could also ...

It can be moved around to aim the electron beam at different parts of the sample. Detectors ... This means it can show us objects so tiny that they are invisible to the naked eye and even to many ...

The varying degrees of electron scattering or absorption by different components of the ... including the type of information needed about the sample, the resolution required, and the analytical ...

Since the 1800s and the invention of the compound light microscope, there have only been a few major jumps in resolution to see different length ... new technique called electron ptychography ...