Some of you probably know this already, but there’s actually more than one kind of electron microscope. In electronics work, the scanning electron microscope (SEM) is the most common. You hit… ...

An electron microscope consists of an electron gun, various lenses and optics, a sample holder and detectors oriented either in a transmission or scattering geometry. Due to the high voltages often ...

Biological samples for conventional electron microscopes are often negatively stained or embedded into resin to produce thin sections. These methods can adversely affect the sample, dehydrating it ...

Since their development in the early 1950's, scanning electron microscopes have developed new areas of study in the medical and physical science communities. The SEM has allowed researchers to examine ...

Now, for no other reason than wanting a real challenge, the 28-year-old engineer picked the toughest DIY project he could imagine: a homemade scanning electron microscope, or SEM. “I wanted to ...